I wanted to know to know if I could make my own color spray like the kind Wilton has in a can. I am just using it for cucapkes? What do you think, would it work? thanks!

you can use a brand new food safe spray bottle & see how you like it

i've made these before--but i used it on a dummy cake

AYes you sure can, I seen it on Pintrest a while back I didn't re pin it :/. I believe it was 2 Tbs Vodka and desired amount of color in a small spritzer bottle, I'm sure you can Google it there were great reviews. HTH