This is an adapter for car cup holder. This is the perfect way to store sunglasses. Please note!!! This is an OnShape design! This fits my car (Toyota Corolla 2021). The design can be adapted by anyone in OnShape! I used a felt to line the glasses holder so that the glasses would not be damaged.

Here is the OnShape link:

https://cad.onshape.com/documents/5b5bac629d63af47eff5906d/w/3bfcf309a2e285c0548d66fe/e/8f572d3fa09684f6022d38a5?renderMode=0&uiState=65a269c4891ebe48ab096d6b