This is an easy way of taking painting to the park or out and about for a creative art activity. I got some thick card (or watercolour paper would be perfect for this) and put some spots of Gouache along the sides of the card and left it to dry. Once dry it makes a portable paint palate, all you need is a paint brush and some water.
Gouache is great because you can keep reworking the dried work, so even after the painting is dry by just using a wet brush the painting can be reworked.
(Unfortunately I cannot remember where I first came across this idea and am unable to link to the source)