This is a project I did with my son's second grade class for Father's day. This is my sample, using my 5th grader's picture. Super easy, just take 4 x 4 designer paper and cover with glue stick and adhere to coaster. Use sticky strip or double sided tape to attach dsp to binder clip. Embellish how you like. Super easy project for 8 year olds.
Not my original idea, saw it on SCS and then we did at a demo meeting. The kids did well with it and we made a card.