We live in a very small town in Africa - my husband works for an NGO - and paints for children are not available here. I did buy loads of finger paints and kids paints but that luggage went missing on our flight here. In the market, I have found petrol based house paints. Is there anything I can do with these to dilute these down and to make them paint-able with? We've made paints out of mixing muds and sands with water, but I think my toddler is getting bored of brown! Thank you!