I modified my original zag-zag pot to soften the sharp corners
Should print without supports in any material.
See: https://cad.onshape.com/documents/bc7090c9942dce6638f531e5/w/c9dac6e9cf5ad07f82aa0c5b/e/7493ae141025e5298814e0f1?renderMode=1&uiState=68491a0057f05c3877b7df5d