The brush hold for storage of your paint brush you need .
1. jar with good lid
2. rubber "O' rings 3- 4 different sizes, (start with smallest and graduate up)
Now just drill holes that are smaller than your "O" ring in the lid. Slip the "O" ring over the end of the brush down to the point that your brush bristle sits in your solution your storing them in.
Note that if done correctly you will not have very much odor as the "O" ring covers the hole. Any holes not in use, have some tape that you can cover them with.
Also attached a photo of the paint brush holder used when painting . Cartridge holder for 223 Bullets, just bend it back and glue together, then glue that to a piece of wood wide enough to support it from falling over from the angle of the brushes. I've had all brushes on one side and it has never tipped over. happy painting.