You can find a bunch of ideas on Pinterest for this activity. All you need is contact paper and painters tape. Both of which can be found at the dollar tree (my most favorite store!). Tape a piece of contact paper on the wall with the sticky side out. Gather any random or theme based objects to stick to the wall. These can include, paper scraps, tissue paper, shapes, flowers, animal cut outs, beads, etc. This is a fun activity for the youngest to the oldest little ones.