I bought Fred a floating Betta log. He absolutely loves it. He now has three tunnel/cave things and he loves to swim through all of them.
And Oliver -- my new-ish Betta -- has another new live plant and a moss ball in his aquarium. The poor thing was so exhausted from being in his little dish at Petco for so long. He loves his new space -- 5 gallons, filtered, heated, and lots of plants and caves -- but he has no muscle strength. He's slowly building up his muscles again and exploring his tank.
Still working on saving a rescue fish that was pretty far gone. He wasn't sick per se, but he was a tailbiter and pretty stressed from the poor conditions he was kept in. He was in a 3 gallon when we first brought him home. We switched him to a 10 gallon divided tank and put a female Betta on the other side of him. He was laying on the bottom not moving yesterday. Today he's swimming around, his fins are unclamped, and he keeps going over to the divider to get a good look at her. I think she sparked some life in him. lol