Pictures: Check out your super suit designs
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Who would win a battle between these two superheroes? Sponge Man was designed by Ollie and has a hair-gel gun - but Bryant's Super Calculator Man can solve difficult maths problems with his biceps.
Check out Fire Blaster Man by Ben in Rhoose in South Wales - he has laser eyes and jet power. Could he defeat the electrical powers of the Telsa Supersuit by Ben in Newcastle?
Kaoutar in Manchester has designed a super homework suit that can solve even the toughest problems. Iqra in Oldham has designed a super-detailed hero - Invincible Man! He has all the powers he needs to 'bring justice and peace to the world'.
We've asked you to send in your super suit designs so we can show some of them to the stars of the Iron Man 3 film. Laurence has sent us his avenger like design and says he used different parts of other superheroes as his inspiration.
To send in your designs, just email them to newsroundpix@bbc.co.uk 10-year-old Ellie has sent in her all in one cooking super suit equipped with a rolling pin, spoon and oven.
11-year-old Ellie has created the super sonic sketch pad girl, where everything you draw comes to life.
8-year-old Mollie has designed the super dangerous suit.
9-year-old Lauren has created the super pool suit designed for a pool party with beach balls, floats and water coming from the boots.
13-year-old Abdullah from London has sent in his super suit called the X infinity.
9-year-old Paula has sent in her super cold and icy design.
This is 8-year-old Jack's spider like fire suit design.
8-year-old Oliver's candy suit with lollipops everywhere would come in handy if you were feeling a bit peckish.
9-year-old Callum has sent us his super armoured maximus ironman with rocket boots.
This is Max's super suit design with night vision and falcon vision.
11-year-old Elsie in Somerset has created the glamour super suit which comes with an emergency hair and make up kit.
11-year-old William from Gloucestershire has made a sneaky spy suit designed with ultra hearing and Xray vision.