I have been making bug spray. Mosquito repellent, more specifically. Not quite as odd as making other pesticides like maybe, home-made Raid.
I started making my own because I didn't want to expose my kids to all the toxins in the sprays that stores carry. I didn't think too much about the chemicals I was spraying on my children until I read the label on a Off Skintastic bottle. When I read that you were supposed to immediately wash it off with soap and water upon returning indoors, I suspected that it probably wasn't good for them.
That led to more research on the hazards of DEET and I decided to make my own non-toxic alternative. It's a combination of essential oils so it's safe and it smells nice. I am designing a small ad that will be on here at some point, but for now send me an email if you have an interest in ordering. It's priced at $10 plus3.50 shipping.