I used to make a lot of copper foil stained glass but it’s rather tedious, toxic, and requires a dedicated work area unless you want glass shards all over your house. On one of my journeys to the craft store I bought a ton of this Gallery Glass stuff which is just a liquid that you can use to make cool stained glass-like art.
I recently made a spiderweb and a Jack O Lantern scene. I did them on the 8×10 glass from a store-bought picture frame and then hung them up with fishing line in my window:
On the spider one I painted it on with craft acrylic after I had finished the main design.
This stuff is fun and easy and the best part is if you mess up a bit, you can easily cut out the part you don’t like with an exacto blade and redo that area – I did that on several sections of the pumpkin one and it ended up looking great in my window…it won’t last as long or have the same effect as real stained glass, but it’s about 1/100th of the effort so for now I am going to make a bunch more of these things