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42mm 3D Printable Models
Perforated concentric balls
Thangs
georgmierau
IKEA Skadis 42mm bottle side/end mount
Printables
shadytree
50mm to 27.7mm Caravan Water Pipe Adapter
MakerWorld
LORD Sn1per
Velbon-style Quick Release Base
Printables
dyn1x
47mm Washbasin Adapter
MakerWorld
ohrenstoepsel
DN40 and ID 36 Vac Hose modified SHOPVAC CAMLOCK
MakerWorld
vr6syncro
Biker Cavalry Base 75x42
Thingiverse
onebitpixel
The Clip-On Lens Cap Holder
Thingiverse
DotScott1