I crafted a bunch of tokens for my players abilities. It's poker chips with round stickers on both sides.
I created round token images in Google Image with artwork found only (mostly icons from video games) and printed them on sticker paper, then cut into a round shape using one of those tools:
We use them for spell slots. Whenever a PC casts a spell, they give me the token and I hand them back on a rest. Same goes for class abilities. I also use some generic ones (the green on the right) myself to keep track of my bad guys spell slots and toss them on the table when I use them. It also gives the player an idea of how low I am on spell slots.
I found the following toy in a garage sale. It's a Happy Meal toy (from MacDonalds), where you have to grab a plastic key from two plastic handles.
I didn't really care about the toy, but the two snakes inside grabbed my attention.
I had a very hard time opening the toy as it was screwed very tightly and the screws where in placed I couldn't get to. So I had to bend and twist the plastic until I could rip it appart.
Finally, I managed to extract the two snakes, and they where sitting on perfect round bases, I didn't even needed to base them.
I made some sewer tiles from a set of square coasters.
The coasters had a cork underground, so I traced a squared pattern on it and dig some recesses along the lines with a utility knife.
I then pulled the cork out where I wanted the dirty water to go, applied a fair dose of texture paste, and brushed them to make it look like water.
I painted the tiles black, and applied a light dry brush (in retrospect, I can see that they lack texture, but it was good enough). For the water, I applied green paint and a green wash
I'm happy with the overall result, it looks like dirty water. I just wished I had more coasters to make more tiles, this set is pretty limited in terms of gameplay.
We ended up not even using it in our game, and using the game mat as it allowed for versatility.