How many times have you tried to drink but you couldn't find the straw? So you try to grab that damn straw with the mouth but it continues to move from side to side! Grrrr :) Do not let this happen again, download KETRA, a parametri straw holder!  This fun gadget also allows you to distinguish your glass from others, something useful in a crowded party, is't it? In the ZIP file you will find three examples of straw holder generated with the script and a file in OpenSCAD format. HOW DOES IT WORK? Simple, download OpenSCAD (it’s free) from openscad.org and open the Ketra Straw Holder Generator.scad file. Now you can modify some parameters to print a product that is really suited to your needs (follow the instructions provided inside). When you’re satisfied with the result press F6 key and save the STL file ready to be printed. Done! More projects at www.castomized.com