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?