Sources:

 * Crystal_SMD_5032_4Pads.wrl: https://github.com/KiCad/kicad-library/blob/f2230b8b1e47ccc9e7810d134fbeda73b29bfaf7/modules/packages3d/Crystals.3dshapes/Crystal_SMD_5032_4Pads.wrl
 * Molex_KK-254_1x02_P2.54mm_Horizontal.wrl: modified from
   - https://github.com/KiCad/kicad-packages3D/blob/master/Connector_Molex.3dshapes/Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical.wrl
   - https://github.com/KiCad/kicad-packages3D/blob/master/Connector_PinHeader_2.54mm.3dshapes/PinHeader_1x02_P2.54mm_Horizontal.wrl
 * USB_C_Receptacle_HRO_TYPE-C-31-M-12.step: https://grabcad.com/library/type-c-31-m-12-1
