We'll be back with more Great Sport Relief Bake Off coverage next Wednesday at the earlier time of 8pm, so don't forget to join us next week when ex-Labour politician Ed Balls, writer and presenter Victoria Coren Mitchell, sports commentator Chris Kamara and Girls Aloud singer and actress Kimberley Walsh will be gracing the Bake Off tent (and dusting it with more than a little bit of icing sugar).

And of course, you can donate to Sport Relief, external in the meantime - it really does make a difference both here in the UK and across the world's poorest communities. See what we mean on the Sport Relief website, external.

We'd also love to see your pictures of your own Sport Relief bakes - send them to us using the hashtag #GBBOSportRelief.

Until then - goodbye and thanks for joining us! (Here's a tasty clip from next week's episode to keep you going...)

"For one night I got to be a winner... Now I'll spend the rest of my life as a loser," he says. Not in our eyes you won't, Jason!

Samantha Cameron has won the first Star Baker apron of the series for her perfect pastry and wonderful wave-tastic Showstopper!

Image source, Love Productions / BBC

The bakers are doing their best to don straight faces, but clearly have a case of the giggles as they wait to hear the announcement. (And poor Jason is sporting mysteriously green fingers!)

Maddy's Showstopper has clearly impressed the judges, but it looks like Sam Cam's Showstopper cake has delighted the judges. Jason's Showstopper looks like it's sunk him out of the contest, and David's pretty much discounted at this point.

It's time for Mary and Paul to meet David's HUGE trophy, which almost resembles a gold edition of Darth Vader's melted helmet. (Just us? No? Verdicts to #GBBOSportRelief please!)

The tent collapses into laughter as the judges are acquainted with the Bake Off behemoth.

Mary counts a whopping five layers of sponge before tucking in and... it tastes really good! (Although Paul hasn't found any of the advertised chocolate chips in the sponge yet.)

"Well done David," Mel says.

It's time for the winner to be decided...

"I think you've done a very good effort but it's just a little on the clumsy side," Mary says nicely. Jason agrees.

"What's difficult for us is to try the trophy..."

"Because it's such an iconic trophy," Jason says, interrupting Paul.

"...Because it's still wet," Paul finishes, going in for a taste. Jason looks terrified.

Mary discovers Jason's jam is overcooked and proceeds to give him a masterclass.

"The sponges are a little bit dry... The buttercream is alright!" Paul says (this is Sport Relief, after all).

Jason's ambition looks like it's got the better of him...

"You must have used a ton of sugar paste on this," Paul says, as Mary admires Sam's decoration - which features well crafted waves that Mary takes delight in. He cuts into the cake to reveal Sam's strawberry surprise. "Oooh, that's fun!" Mary coos.

"It's very well executed and you should feel proud of yourself," Paul says, after admiring Sam's sponge and filling.

"It looks good, you can see it's a mat," Paul observes.

"I'm not actually sure what a yoga mat is," Mary confesses, "I don't do yoga." She is, however, impressed with the Swiss roll spiral Maddy's pulled out of her (gym) bag.

Both Mary and Paul are being a tad dubious about whether it counts as a trophy though, the spoilsports.

"It cuts well," Paul said, tucking in.

"It's quite a close textured sponge, but because you've put lots of cream and jam in, it makes it nice to eat," Mary says.

Paul also commends the bake - particularly the flavour of the sponge.

The metaphorical full-time whistle has blown - but what will the judges think of our bakers' final masterpieces? And, perhaps more importantly, will David's sponge helmet taste better than it looks!?

"David, helmet on plinth!" Mel orders, as David attempts to finish his cake. "It's just so heavy," he pants, before the helmet begins to slide. Mel leaps to its rescue - and is soon joined by Sam Cam and Maddy. "It's ripping!" Mel panics.

David's attempted to coat his sponges in fondant, but has somehow managed to create a ghost, rather than a helmet as intended. Mel leaps into action.

The bakers are in the final furlong of the challenge, and Jason's joy has started to fade. His battenburg isn't as easy to coat in fondant as he expected. "I can't believe I've fallen at the last hurdle," he whimpers.

Feeling up to the challenge of baking for Sport Relief? Why not order a Bake Off fundraising kit, external?

"Get the old stress out, imagine that's Paul's face," a mischievous Mel says to Jason as he kneads his green fondant.

"I'll just give it a little kiss there," Jason giggles.

"You creep!" Mel says, enjoying every second.

David's self-coaching as he starts to construct his sponge helmet - but he's definitely further behind the others and their more modestly sized Showstoppers: Sam Cam's trophy base is finished, Jason's trophy is wrapped in fondant and Maddy's sprayed her yoga mat gold already.

The clock is ticking and David's trying to dream up ways of ensuring his final sponge cooks in the middle.

"If I stick a metal spoon in there, it will cook because the spoon will become a conductor of heat and cook the middle," he theorises.

"Come again?" Lab assistant Mel queries. "Keep the spoon in as you cook it? David, you're a genius! You're breaking the blooming boundaries of baking!"

"I've got to try, haven't I?" David decides, before discovering the spoons have run out. He settles for a fork instead.

(Please note, this form of experimental cooking is not endorsed by Mary, Paul, or anyone at the BBC.)