How to smooth PLA 3d printed items

I found this very interesting article about smoothing PLA. 

They are using Ethyl Acetate in a vapor bath the same way as acetone is used for ABS.

It seems to be working very well enough for home use.

Here is a PLA octopus before and after smoothing.

The original article is below with the exact method they used.

http://fabsterdam.com/3dprinting/smoothing-pla/