I just reuse a smaller original glue bottle. Mine still works and it's probably 20 years old. I like the flat tip vs the round tip. Also, I feel like the tip of the original bottle is teflon or some other less likely to get stuck version of plastic. I don't have to worry about labeling it or having the label come off if it's stored next to other bottles of chemicals. How much glue do you go through in a given year? I'll use custom bottles for custom mixtures like atf and acetone for loosening a rusted bolt. I also occasionally will pick up syringes for detail work at the pharmacy when I need to fill out a prescription.