Favorite type of glass for flasking?

[Boyajian]

Hello, years ago I considered trying to produce some little babies (plants) managed to get a Phal. preggers and at the time there really wasn't a lot of info available in regards to flasking - not like now with the internet and you wonderful people!

So, I am wondering after reading I think every post on propagation (seriously, hours spent today) what is the favorite glass ware that you have found for flasking Phals?

Any and all replies will be appreciated Barbara