https://www.imcdb.org/vehicle_287395.html


https://www.imcdb.org/vehicle_1900607.html

https://www.imcdb.org/vehicle_1891677.html

https://www.imcdb.org/vehicle_1900643.html

this can be listed as Custom Made Mini T16 ,origin russia, that's how this self build tractors are often refereed to there
https://www.imcdb.org/vehicle_348327.html


https://www.imcdb.org/vehicle_1661563.html

like night cub suggested
https://www.imcdb.org/vehicle_1773263.html


another Kubuta powered one
https://www.imcdb.org/vehicle_533378-Custom-Made.html

small corrections
https://www.imcdb.org/vehicle_1023584-UTB-Universal-651.html
https://www.imcdb.org/vehicle_551529-UTB-Universal-U-650.html