If you look in afew differnet dollar/pound shops you should be able to find a size to suit, (i bought all the sizes) and if your lucky wont need to split them. Be careful when buying them too as while most are styrene some are a different plastic. Also avoid the coloured ones, and those with glitter in, something in them reacts with the paint no matter how careful you are to put a barrier between the paint layers. Also some of the knife handles make great running boards for 30s customs