Text cup/trash can

It's based on [Character tower generator](https://www.thingiverse.com/thing:1241377). The idea is from [the comment of PI Sphere](http://www.thingiverse.com/thing:1639055/#comment-920827). You may input your own text on it.

Find things about [PI](http://www.thingiverse.com/JustinSDK/collections/pi).

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- *[OpenSCAD Documentation - Traditional Chinese](http://openhome.cc/Gossip/OpenSCAD/)*
- *[OpenSCAD Documentation - English](http://openhome.cc/eGossip/OpenSCAD/)*

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