Location: indoor or outdoor (though this can be very messy, so outdoor might be preferable)
Materials: large paper, paper plates (or other flat paint containers), paint, bare feet, bucket of soapy water and towels for clean up
This is a great variation on finger painting. Instead of using the hands, kids get to use their feet. Invite children to take their shoes and socks off. They will step in paint and then step onto the paper to create art.
Have a bucket or tupperware of soapy water nearby so that when kids are done they can step from the paper into clean water. This is still a messy activity, but you can try to keep it contained.
Possible Extensions: