I want to make a cake with confetti "falling" down a cake. Any ideas?

Could you use a new hole punch and punch dots out of frosting sheets or cut it into little squares and make real sugar confetti. You could also use the edible glitter by wilton, that's kind of iridescenty. I've seen it at michael's. Don't use disco dust. It's very fine plastic.

Use a circle piping tip and let them dry, if you want different sizes just use different size circle piping tips.

If you aren't set on round confetti, then just roll out a 50/50 fondant/gumpaste mixture extremely thin. let it dry a little to firm up and then cut small strips, then cross cut them on the bias to make "diamond" shapes or cut perpendicular to make "squares". you could also make some curliques by wrapping strips of these same colors around straws and letting dry.

The fondant/gumpaste could also be dusted with pearl dust to make it shiny on one side and plain on the other for another effect.

Happy Caking!

Thank you for your help. I ended up cutting squares. Round was taking way too long.