A simple 1 gram wall mount for moos or some other aquarium plants. It's fastened via a common suction cup and a cable tie.
For those who are interessted, the moos in the picture is “Christmas Moos - Vesicularia montagnei”.
EDIT (04.02.2024):
Since one Ball looked a bit lonely i added a few holders with a slide in solution (see picture).
I added a 2er, 3er, 2x2 and 3x3. More extra stuff in the pipeline.
Once the green grows there will be a lot of spaces to hide for your e.g. srimps. And you could even observe them in their hideout if the backside is accessible.
The author marked this model as their own original creation.