I altered a CD (I've gotten tons from AOL over time) with modeling paste and then painted it with Lumiere paints in about three colors. Then to make the center hole a little smaller and add thickness to hold in the clock fixings I took some PaperClay made a square-ish shape and stamped into it. When it dried used Lumiere again. Already had clock fixings I got from JoAnns or Michael's for about $5.
A few Sundays ago at church, the fourth graders' lesson had this title. I thought it was quite cute and clever. Each held a can of 7 Up. The seven points were: wake up dress up close up stand up look up reach up lift up