Made little aquariums out of clear plastic eggs that once had goodies in them!
The fish came from slime I bought some year or so ago, and I made the octopus out of polymer clay. I also used green easter basket grass for the water plants and used thread to keep the fish up and alive-looking!
Moss baskets to try and grow some fluffy places for the skrimps to forage. I bought the first one off eBay and when I got it in the mail I thought, is that it?? For £5?? And I went and made myself a diy one using some fishing line, an old aquatic plant pot and a ceramic weight. Just stuff it full of Java moss and gently pull tendrils through using a small crochet hook (mine was 2.5mm) hopefully it gives the moss something to hang on to and lets it feed through the water column. I’ll update if it actually works or not!