Hi what's the best source for liquid slime and it must be latex friendly, tried ebay but no luck. C

You mean like a jug of slime already prepared? If you're in the UK, Messy Supplies sells containers of prepared gunge, along with powdered Gunge you can prepare yourself. If you can make it yourself, cake batter or oatmeal are both great and won't interact with latex.

I'll add you don't have to be in the UK. I'm in the US and order from messy supplies quite often. It's amazing stuff