The Very Flexy Caterpillar

Flexy Caterpillar! 
🐛

Really fun to flex and bend (gently!). Great as a fidget or just as a desk toy.
I posted two profiles. The green one (0.2mm bottom) is more flexible, but tends to be more fragile. The red one (0.4mm bottom) trades some flexibility for some toughness.
 

I had very good results printing this in 95A TPU,  BambuLab Matte PLA or BambuLab PETG. 

Generic PLA (I tried Sunlu) seemed to be be too stiff and had the tendency to break.

For what it's worth, my personal favorite is TPU because it's flexible and very resilient.

NOTE: This design is meant to be played with gently. It will not survive most kids, or withstand sharp bending.