We have the Lascal Mini buggy board and twice now one of the blinking screws for the extender arms has come loose and got lost. Even more helpfully, we're based in the Netherlands. I managed to find one screw on eBay but the postage was extortionate and it's gotten lost again. Why is it so hard to find spares for this thing? Does anyone know somewhere that sells spares, or can recommend another screw that's the same size?