Share 'anyone with silicone mould making experience?'

My "chocoalte room" is visible to the public in our small store, and no matter how hard I try to keep clean, the melters are always a mess, What I have now are two D+R melters on home made carts, the dark melter has a wheel.  I've done the cling-film over the sides thing, and it is easy to pull off the dirty film, but it is a hassle.  I do a lot of moulding, and no matter how hard I try, I still…