National Doodle Day Competition in conjunction with Just Mustard

Thanks to everybody who took part in the competition! The closing date has now passed and the winner have been contacted.

This year, thanks to gift company Mustard, National Doodle Day is running a competition where you could be winning a fab, Do It Yourself “doodle” Calculator.

“The DIY Calculator by Mustard adds fun and charm to maths, while subtracting almost every part of a normal calculator. Doodle away and design your very own adding machine on its blank canvas. There’s a template indicating where the digits and symbols need to go, the rest is up to your imagination. So no matter your age or style, this calculator will suit you.”

All you need to do to get involved is guess (calculate) how much the celebrity doodle auction will have raised by 4pm (GMT) on National Doodle Day!

To enter simply tweet your answer to @DoodleDay using the hashtag #doodlecomp
Email it to doodle@epilepsy.org.uk (please include the words doodlecomp in subject line)
Or, post your answer on our Facebook page

The 10 nearest answer to the actual amount will receive a free calculator