20- to 28-ounce plastic peanut butter jar with lid, or a 1-quart plastic deli or yogurt container with lid, washed and dried
Felt scraps, buttons, glue stick, and permanent markers
Metal-rim key tag
15-inch length of ribbon (in a color that contrasts with the sock)
1 adult-sized solid-colored sock (the fuzzier and brighter the better)
How to make it:
Screw or snap the lid tightly onto the jar or container, then turn the jar upside down, onto its lid. Use the utility knife to carefully cut a coin slot (1 1/2 inches long and 1/4 inch wide) on the side of the jar, about an inch down from what's now the top of the bank.
Have your child pull the sock down over the jar until the heel of the sock is at the top of the bank and the cuff reaches the bottom (if the sock is a bit long, just trim the cuff to fit)..
If your child is old enough to use scissors, have her cut the foot of the sock down the middle into two pieces (the dog's "ears"), stopping just before the top of the jar. She can tie the ears together in a loose knot at the top of the bank.
Use the scissors to cut through the sock to expose the coin slot.
Glue a felt-scrap-and-button face on the bank (or draw one on with markers).
Write the dog's name on the key tag, then thread the ribbon through the ring attached to the tag. Now attach the collar: Smear some glue on one end of the ribbon, then stick that end onto the back of the bank, about 1 inch up from the base. Wrap the ribbon around the bank until it meets the other end. Put more glue on this end of the ribbon, and press to adhere.