I have some 1" hydroponic inserts for a common seed pod starting system and wanted to reuse those inserts.
Examples of 1" seed pod inserts

• https://www.amazon.com/AeroGarden-Gourmet-Herb-Seed-9-Pod/dp/B01614SQRM/ref=sr_1_6
• https://www.amazon.com/Seed-Pod-Compatible-Aerogarden-Brands/dp/B0CNPRQQM6/ref=sr_1_12
• https://www.amazon.com/AeroGarden-Heirloom-Salad-Greens-6-Pod/dp/B01614SV40/ref=sr_1_13?crid=3