The first thing that you need to do is to plan for the activity that you want to do. Make sure that you will be able to formulate the plan way ahead of the date of the activity. You have to consider a lot of things with regards to the plan that you will do such as the materials that you will use. The participants preference and many more.
It is very vital that you will only use the paints that are appropriate for the skin of the models or participants. Make sure that the paints are hypoallergenic and will not cause any allergies especially to kids. Try to look for these paints in stores near you. There are also online sites that will help you buy the best paints to use for the activity. The colors of the paint must also be considered. Red, blue and yellow are very important colors that you need to consider.