I love the creations of a store on etsy called Stroodies. I desperately wish I had the space to set up a massive tank full of a bunch of their decor in glow in the dark shades. Because I’m a 100% practical adult… 
Just be sure to avoid using any wood or rocks you might come across yourself. I’ve been around ~half a dozen cases where inappropriate cage decor was directly responsible for the death of the herps in the cage.