I usually make the beads mixed with the corn cob. I found that the scent last longer and its more cost effective. I use colored bags and sometimes I will use the while or cream ones and just color the beads. I have made alot of different scents - I just use stuff for whatever the season is. I have some fall ones now - pumpkin pie, harvest, etc. I have also done the carded air fresheners. They sell okay. i bought some from the classys and just never got around to ordering any more. I did notice at the holidays I would do pine in the shape of a tree or a stocking and they did sell great for the season. but I never had much luck with them. As for the jars - I never did those either. I was kinda the same way and thought someone would spill them - or people would think it was too large for the car etc. I would take the sample bottle scents that I had around the 1 oz. and use that to make the airfresheners. Not sure if I helped ya or not. But wanted to put in my 2 cents too lol