Free6x6 Noughts and Crosses. 2 to 4 Player
Thingiverse
64 model
Free
FreeMercedes G 6x6 Scale1-100 for 3D-printing
Sketchfab
FreeBinary Overlay Puzzle 6x6
Printables
FreeBinary Overlay Puzzle 6x6
Thingiverse
FreeAdaption from 4x4 to 6x6
Printables
FreeTestors Bottle Paint and Brush Tray Holder 6x6 and 6x5
Thingiverse
FreeIveco Bear 6x6 Parts
Thingiverse
FreeAustralian Army International F1 6X6 Truck for resin printers
Thingiverse
FreeSquare fabric couster holder (6x6)
Printables
FreeAustralian Army International F1 6X6 Truck
Thingiverse
FreeENDER 3 V3 SE Bed level test 6x6 for Navaismo
Printables
Freescx jeep gladiator 6x6
Thingiverse
FreeRC 6x6 small scale truck
Thingiverse
FreeUrsa (bear) 6x6 mod + ZIL cabin
Thingiverse
Free1:64 M49A2 Kaiser Jeep 6x6 Fuel
Thingiverse
FreeMercedes Unimog Badge 1/10th scale RC 6x6
Thingiverse
FreeCybertruck 6x6 for Lego Minifigures
MyMiniFactory
FreeHennessey VelociRaptor 6x6
Printables
Free6x6 Negative Holder for Digitizing -JCHP
Thingiverse
FreeAtlas 6x6 Sliders
Thingiverse
Freeholga 6X6 mask
Printables
FreeOmega C700 6x6 negative carrier
Printables
Free120 Film Scan Holder - 6x6 mask (Remix of Print&Scan)
Printables
FreeDiascopes and frames for slide films of 120 format, 6x6 and 645 sizes.
Printables
FreeFat Shot X - Multiformat (6x17, 6x14, 6x12, 6x9 and 6x6) 120 type film camera
Printables
Free120 Film Scanning Carrier Holder Touchless/Scratchless 645 6x6 6x7
Printables
Free6x6-135_Framing frames
Printables
Free120 6x6 Film Carrier/Holder replacement (compatible with Valoi Easy120)
Printables
Free120/6x6 film scanning guide
Printables
FreeterraPin OSKAR - Magnet (pinhole camera) 6x6
Printables
FreeFCO66 Vmount 6x6 film camera
Printables
FreeOmega 6x6 neg carrier
Printables
FreeZenza Bronica GS-1 6x6 Viewfinder Mask Guide
Printables
Free6x6 lens board fits Deardorff V8
Printables
Freetriangle fabric 6x6
Thingiverse
FreeVivitar 356 6x6 negative carrier
Printables
Freelumi-con 6x6 mini (not macro)
Printables
FreeLego 8x8 block and 6x6 butterfly piston
Thingiverse
FreeWPL FRAME 6x6
Thingiverse
FreeTrenchy 6x6 Beast (unpolished, not smoothed and untested)
Thingiverse
FreeIKEA Skadis Wall Panel with standoffs, 6x6, 5x5, 4x4 holes and other sizes
Printables
FreeSudoku/Colorku 6x6
Printables
FreeSquare cookie cutter set 1,5cm - 10cm.
Printables
FreeAEMTL103 - Water (Ocean)
MyMiniFactory
FreeTrailer Hitch for Crawler 4320 Expedition Cab - 1/10 RC Body Attachment
MyMiniFactory
FreeBeseler 45 Negative Carrier – 6 x 6
Printables
FreeBeseler 23C Negative Carrier – 6 x 6
Printables
FreeWet plate collodion adapter for Hasselblad Polaroid 100 back
Printables