cleaning a record bowl

[jesamine.livejournal.com]

i just made my first record bowl...and it turned out great :D well, how can it not...heh...

anyway, i'm supposed to be making a load of these for my friends party...for her to put food in. so i was just wondering, is there anything i shouldn't use on it to clean it? as in, is there anything that will ruin the plastic or something? or would it be ok to use anything...like normal washing-up liquid and hotwater?...

help!