Thank you for sharing this! I love the idea of using little tubes for preparing the fragrance.Finished getting sample FOs ready for pouring, now need to prepare a test batch of batter. I HATE doing samples because my hands are really shaky and it is a PITA to do them one at a time, I have to pour in/pour out/pour in/pour out, seemingly ad infinitum, to get the right teeny amount in. During which time the batter is thickening, I am getting frustrated and time-pressed, etc.
For me it is much less stressful to do a bunch in advance and then when it's time to pour and mix I can just dump the FO in to each little testing cup. I learned this from an smf member, soapmaker145, who did an amazing amount of testing/posting.
Here's their testing procedure post for anyone that's interested (on post #174): https://www.soapmakingforum.com/threads/fragrance-buddy-fo-test.56966/page-9
The little tubes and stand cost about $13.00 together on Amazon US.
Great idea with banding the pipettes to the fragrance bottle. I love using pipettes but hate the plastic waste too. I think I have some glass pipettes with rubber tops that I might be able to wash.I am also one who hates disposable anything, especially plastic waste. But there is a time and place for these. As Relle noted, you can wash them.
When I use them for larger FO/EO bottles, I actually use a rubber band to secure the pipette to that bottle, so I can resuse it for the same scent. You could do the same for the tester bottles for which you decide to order larger quantities.