Ping Pong Calendar

With a totally retro-hip style straight out of a 1970's-era Good Housekeeping magazine, the Ping Pong Calendar is a useful item with a unique flair. Since you set the month, date, and day by hand, it'll remain usable for the forseeable future (unlike most paper calendars), and with its bright blue and chartreuse colour scheme, it'll clash with nearly any tasteful decor! $34 USD.