Bottle holder for the Multiboard using the Multiconnect system. Various sizes includes but the model is online with Onshape and is parametric. Use the URL and change the variable ‘size’ to whatever value you like. The fillets may need some touching up on certain values.

https://cad.onshape.com/documents/fd90495ddefa872e6c39fdbc/w/35378ee8845630b62a08f7a5/e/6ecb981412a680d1e3fa2d66?renderMode=0&rightPanel=variableTablePanel&uiState=66edfd22f32a4852bfba930c