I found these little Valentine erasers at our local Superstore -- they were six for a buck, or something like that. The little heart-shaped notebook pictured was also from a package of six for a buck. They came from our local dollar store. I used my label-maker to print out the text, only because I'd run out of ink for the printer. But the fact that it printed in the form of adhesive tape was actually a bonus.
Of course, after I'd made them Luke decided he preferred to use his store-bought Spiderman ones. Oh well. I had fun anyway. It may not be a mistake to be friends but it is certainly a mistake to assume your child will be enthusiastic about your ideas. Maybe I'll send them to the next twenty people who "friend" me on facebook.