Kitchen sink sponge holder with suction cup

Disclaimer: This model was designed by me from scratch but was heavily inspired by https://www.printables.com/model/789224-sponge-holder

This sponge holder is designed for a typical Scotch-Brite sponge and you will need this suction cup from Amazon (NOT an affiliated link):

https://www.amazon.com/dp/B0BWM24F3G?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1&th=1