Who says that thumbtacks have to be of the boring, office-supply store variety?
Try using inexpensive pierced earrings instead! Just pop off the backs and you're ready to go...
Shops like Forever 21, H & M, and Claires have a good selection of multi-pack earrings in a wide variety of styles. The ones I used for yesterday's mini memo boards were from Forever 21.
So skip the plain jane thumbtacks and put those pretty earrings to practical use!