My bettas love their leaf hammocks and I just made them by myself. I went to the fake plants section of my local craft store and asked them if I could have some of their fallen leaves (they just sweep them up and throw them away). I picked out the ones that didn't have glitter, paints, etc (basically JUST silk) and then bought some airline suction holders and glued them together. Voila! Leaf hammock! lol
Now my plants are really tall and my bettas kinda sleep everywhere, but they still visit their hammocks now and then.