Create an image for a sign - cartoon character of a germ

I am looking to have a 20 x 30 " sign made - with a cartoon germ. The germ will have legs and arms and be holding a sign that says GERM FREE ZONE. I will be adding a large silicone nose so a space of 7" HIGH by 3.5" wide in the middle and 5" at the bottom needs to be left where his nose should be. In the bottom right corner (pointing up to his right nostril where the liquid comes out - I need an arrow and the wording "GIVE IT A SHOT". On the word 'SHOT' - I'd like the bar in the H to be slightly crooked so that it could also look like SNOT (somewhere in between) I've attached the actual colour of the nose would like the germ to have that colouring then fading into bright green and purple. You can design whatever germ with the big eyes and mouth you'd like - would like him to look like a splat and not very scary so that kids will use it.....