For all the sensory activities you need this splat mat. Advertised for under high chairs to keep the floors clean we use it more often in the playroom when painting, playing with playdoh and water. Our sink is from our Lovevery play kit (linked) but there are similar options available on Amazon (also linked). liketkit http://liketk.it/3bxsa @liketoknow.it LTKbaby LTKhome LTKkids