Customizable Text Cube / Dice

Customizable letter block! WOW!

Can be used as a learning game, for text display, as a novelty dice and everything you can use a cube with letters (or numbers!) for. Possibilities are endless.

You can customize cube size, cube fillet, text size and depth, font and last but not least you can define number of cubes with custom sides.

Cubes are defined as an array of 6-element arrays, for example:

```
[ ["A", "B", "C", "D", "E", "E", "F"] ]
```
will create one cube with sides made of letters from A to F.

You can easily create a cube with only one face populated:
```
[ ["A"] ]

//or have a letter A on bottom face
[ ["", "", "", "", "A", ""] ]
```

Need more cubes? No problem, just define more!
```
// 2 cubes
[ ["A", "B", "C", "D", "E", "F"], ["1", "2", "3", "4", "5", "6"] ]

// even more cubes
[
["A", "B", "C", "D", "E", "F"],
["1", "2", "3", "4", "5", "6"],
["7", "8", "9", "10", "11", "12"],
["Y", "N", "Y", "N", "Y", "N"]
]
```