I wanted a way to create a shelf for my window to put succulents on. I found this bracket as it was the easiest to modify while at the same time providing a good support system. Using 4 2.5" suction cups, you can now create a shelf to put on a window, mirror or anything that can be suction cupped too. I use these https://www.amazon.com/dp/B091GRHKFR?ref=ppx_yo2ov_dt_b_product_details&th=1 - they are pretty strong. I've only had them up a couple days but so far they have been holding pretty strong.
Printed in PETG, which should be fine for most but ASA may be preferred if the sun hits them directly for long periods of time in the summer.
Supports under the suction cup openings.
The author remixed this model.
Suction cup mounting