Test Tube plant holders for water propagation. It makes for a nice wall decoration.
Any size of test tubes will do but we used 41 X 225mm Jumbo test tubes.
The magnets used are 2.3 x 10mm and are attached to the test tubes with glass epoxy. One magnet goes inside the wall mount and the other on the test tube.
These are the magnets used:
https://www.amazon.com/gp/product/B08Y5YZN5C/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1