Your choice or style of leaf from a fake plastic plant.
NON-TOXIC hot glue or 100% NON-TOXIC silicone
Hot Glue Gun if your using the glue.
Gather your supplies, very important lol.
Put a small amount of glue of silicone into the hole of the suction cup.
Quickly place the stem of the leaf into the hole.
Allow the glue or silicone to CURE!
Place your new hammock in the tank for your Betta.
Or just look here you'll get the general idea