Those Twicky Little Stamps

These adorable stamps (upper and lower cases, although they are the same height...) are more of a fun dexterity challenge rather than a practical alternative to handwriting.  Each stamp is only about 1/3" wide, or less, so they fit on the line nicely when a student puts his/her name on the top of their paper. 
Found them at Wal-Mart over the weekend, near the seasonal decorations.  Not super sturdy (some of the little rubber stamp ends immediately fell off the tiny blocks) but fine for occasional use.