The leftovers have been eaten and the games put away, but don't let your festive spirit dwindle just yet. We know all too well what Christmas can be like for big kids. Sure, everyone likes a nice scarf and fresh underwear to see in the new year, but functional presents just aren't the same as fun ones. Well, lucky for you, our friends at Sphero have supplied us with four of their smartphone-controlled bots to send out as belated Christmas gifts. We've got two of the white Ollie bots and two Darkside models up for grabs, with each winner also receiving an Ollie Spine Ramp for getting their trick on. As per usual, you can enter the competition up to three times via the Rafflecopter widget below, but don't forget to give the rules a quick scan first.