We've always loved the idea of multitasking objects. Breastpumping bras that allow you to pump and type on your phone at the same time , an infant carrier arm pad that unrolls into a play mat , etc. But this Car Play Mat T-Shirt  ($24) may take the cake. The t-shirt is designed with a road map on the back — perfectly sized for Matchbox cars — so kids can play while their parents rest. The best part? The relaxing parent gets a nice little massage during playtime. According to Etsy shop bkykid's  owner, "The wide plane commonly found on the reverse side of a mama or daddy makes a superior tactile play surface." We may be convinced; are you?