Hey this is another slingshot!
I was bored and made this and decided to post on instructables!
Tape (or electrical tape in this case)
Step 1: Tie the Knot
Add the rubber bands like a venn diagram
then tie a knot
sorry if its confusing for the rubber band
Step 2: Making the Cradle
Make a cradle using your tape
Tape it where you will pull to fire.
Step 3: Enjoy
Place your thumb in the uncradled part of the band then add a pellet in the cradle and fire