I love using this tumbler to record my water intake automatically. Howerver, this tumbler is too easy to be tipped over and make a mess.
This is a 6 cm tall holder (with 8cm diametre hole) to prevent the mess. If you printed it with white pla, you can still see the lights!
If you print it, let me know if it works for you ^ ^
The author marked this model as their own original creation.