Printed it with 100% size with PLA Green/Black Magic Silk from Rosa3d

Also printed 80% size with PET-G Glassy from Spectrum.

Both were printed on P1S 0.4 nozzle, 0,2 layer height.

I didn't have any problems with parts sticking to other parts (after a few tests of course ;) )

Snake moves smoothly right after printing.

NO SUPPORTS are needed ;)

I didn't use brim and print turned out just great. If you like it please share your make ;)

Update

I printed two more snakes to test if there is an any issue. There was no problem printing   either off  them. 150% scale in X and Y and 120% in Z (looks more real to me in that scale). The tiny one was 50% in XY and 40% in Z.

Have a nice day!!! 

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patreon.com/TomCustoms