Remember those awesome Numberclips? Well, those same folks are at it again with these single number trays! How perfect would these be for birthdays, anniversaries, or any number of events (pun totally intended)? Since they're made of silicone, they can be used for everything from ice cubes, to jello, or even brownies. You could even melt down those little crayon nubs and make fun number crayons! The possibilities really are endless. What would you use them for? And, just for the heck of it, what's your favorite number? Mine's 5!