While Cheap TRX is known and lauded for its stellar piercings, for the past four years the shop's tattoo artists may have been St. Louis' best-kept body-mod secret. Yes, the "Cage" downstairs is a mysterious bastion of adult toys and clothes, but the upstairs is an airy, open workspace where a corps of artists ply their craft. Here you can choose from an extensive selection of pre-drawn "flash," but popping for custom work is well worth the outlay. To have a gander at the tattooists' portfolios, check out the pics section on the CheapTRX MySpace page: www.myspace.com/cheaptrx.