I know I seem to have combined two themes here but they are so cute together! And sprinkles are just edible confetti right? Here are some cute ideas if you want to create your own sprinkles and confetti party.
To make these sprinkle-coated rims, just dip in melted white chocolate, shake off any excess chocolate and then gently dip into sprinkles. Allow to set. Use any leftover melted chocolate to make giant freckles like below.
Funfetti layer cake from Sweetapolita
Sprinkles popcorn from Home and Heart DIY
Confetti lollipops from Candied Cakes
Confetti party pinata from The Happy Home Blog
Confetti party hats from Oh Happy Day