15 Bizarre Invitations You Can Mail Without Envelopes!
Inflatable Beach Balls
For birthday parties, you can send your guests cakes—but not the edible kind. Sandra from She Knows can show you how to make a cake postcard made out of a sponge. If you’re wondering if you can mail sponges, the answer is yes.
Boxes of Candy
Edited on 12/13/2019 by Dana Kim.