http://www.mirrorreaderoffers.co.uk/item-HH-644/?LinkRef=F.R....this is a mini washing machine ideal and perfect for what you want to do simply add the water and the ice along with trimmings in a bubblebag or something mix for 15 mins take bubble bag outgetting every last bit into the washing machine then simply release the water into your other bubble bags thengive a good shake 1 by 1 rinse wiht normal water then there you go got your hash