At one end of the 1×2 wood piece mark with a pencil the curved cuts using a small acrylic paint bottle as the template. Use a scroll saw or band saw to cut off the sharp corners then sand everything smooth.
Use a 5/16″ drill bit (to match the dowel size) and make a 3/4″ deep hole at the center bottom of each wood popsicle.
Cut the dowel into 3″ sections. Apply a dab of wood glue into the hole then shove the dowel in for a secure, snug fit.
Wrap painters tape around the wood handle to protect it from paint. Paint your popsicles as desired.
Drill a small hole for the key chain into one corner of the popsicle. Thread the key chain through and lock.