You can find lots of 3d designs online with various licences this one has the Attribution 3.0 Unported that mean
You are free to:
Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material
for any purpose, even commercially.
And so I made a quick remix using the basic web based edition tinkercad, I first imported a low poly version of the lizard because tinkercad is limited to the files you can upload then I added a loop to the last bit of the tail to make the lizard keychain.
Right below is a screenshot from the original post I got the lizard from, you can find it here
I printed my lizard with some clear filament with a 40% infill and it came out great you can see the infill when I filp the lizard over that grid pattern is the infill, the higher the number the denser the lines...but that will add to the time it takes to print and the material used. but it may be needed to give the part the strength it needs to do its job
Hope you got some value from my post,
Thanks for stopping by, your upvote, comments and resteems are truly appreciated.