Have some white t-shirts and highlighters ready for guests to sign each other's shirts at a glow in the dark party. From Tulle and Twine. See the post at: http://poppyandjune.com/2015/08/09/go-with-the-glow/
20 Epic Glow In The Dark Party Ideas
20 Epic Glow In The Dark Party Ideas | Pretty My Party
Black Light Reactive Neon Party Streamers - I realize black lights aren't so "in" anymore but you could have a lot of fun with something like this!
Make neon popcorn with food coloring spray! FUN!
Glow in the Dark Party Invitations! This would be great for a glow in the dark birthday party! #TeenBirthdayInvitations #GlowInTheDarkInvitations #GlowInTheDarkPartyInvitations
When the lights go out, the party’s on. Let it glow all summer with glow sticks and drinkware from Party City! Throw a glow-in-the-dark party that will leave your guests with all the highlights. For added effect, illuminate your glow with fluorescent black lights.