Yes, have tried it and it didn't work as well for me. It is much cheaper....so would be worth a try. DO BE VERY CAREFUL......pets seem to like the taste but it is a deadly poison for them as well as children.

Second the caution about pets and antifreeze. Works, but the colour isn't as nice as glycerine,and the plant material is a bit more brittle.

On the dried flowers forum I've asked this question and had mixed replies. Some said Low-tox antifreeze is ok, but one person who appears very informed said that even low-tox is hazardous to handle and will also bleed out of the plants in six months. So I wanted to add his cautionary opinion.

Antifreeze is HIGHLY TOXIC to EVERYONE & EVERYTHING! Please don't use it in this way. We allow so many things into our lives today we don't have a clue as to the effects they have. Immediate or accumulative. Antifreeze is only one of them. Glycerine is safe.
Judy

I've used both, the anti-freeze and the glycerin. Both of them work but the glycerin works much better and faster. A florist can order the glycerin by the gallon so that it would be much cheaper for you. And yes, the antiii-freeze is poison. Animals seem to be attracted to it so do be careful.