cheap hopper for a cheap comparator?

so i have been using one of those cheap comparators (coin analyzer or something like that) anyways. it works fine but it sucks handfeeding into this bad boy. anyone know where to buy a cheap autofeed for this and or how to make one? doesnt have to be pretty just functional. and if anyones ever used this bad boy you know it needs to feed relatively slow compared to you ryedale users. i just need something to get me by till i can buy a ryedale too 
