Please don't do this. They'll get damaged or stress your fish. Stick to the tried-and-true methods.
Best way to mount coral frags
Re: Best way to mount coral frags
For real, glue is cheap and easy. No need to reinvent the wheel, my dude.
Re: Best way to mount coral frags
Has anyone had issues with glue turning white underwater? My tank's got a black background, and it stands out like a sore thumb.
Re: Best way to mount coral frags
Yep, that's normal. The white haze fades over time, but if it bugs you, try hiding it with coralline algae growth or positioning the frag where it's less visible.