Open plug for JMac Grommet

Used JMac's grommet model but needed a wide open hole to make a LACK table plushie jail for my daughter's stuffed toys. Used ~50 feet of ¼" bungie cord from amazon.

https://www.amazon.com/dp/B08RS14M38?psc=1&ref=ppx_yo2ov_dt_b_product_details

Used with my other model and table joiners from other users to make a shelving unit.

https://www.printables.com/model/807126-lack-enclosure-extra-shelf-adapter

A simple open hole plug for JMac's LACK table cable grommet