Freeze up some extra cocktail-hour fun with playful Fred ice cube trays: cubes with ’tude. Schtick up your poison with one Chillers ($8), skull-and-crossbones cubes, or for twisted history buffs and Celine Dion fans (if such a thing still goes on), sculpt a mini-iceberg to go with Gin & Titonic ($8) cubes shaped like tiny Titanics. Oh, the irony. These colorful silicone trays are among a plethora of fanciful choices available online at www.fredandfriends.com or at Davis Squared (409 Highland Avenue, Somerville, 617.666.6700)