Mars Mud stretches, bounces and makes strange sounds for hours of playtime fun. This colourful, gooey slime looks like something from outer space. Squish it, stretch it, mold it and shape it. Slap it on the table and watch the slime slowly creep along the surface. Your friends will beg to play with your Mini Mars Mud. Play with this gooey gunk from another planet for hours of fun. Stretch and bounce this play marbled martian sludge that comes straight from the red planet. 5+ years.