| |
|
| |
| |
| An interested in the moire effect and patterns became these |
 |
| US Patents: 7954264 & D74292 |
|
| - Black and white - |
- Color - |
|
 |
 |
 |
 |
| |
|
|
|
 |
 |
 |
 |
| |
|
| and then more generally |
 |
|
| |
| Leading to other kinds of drink coaster designs and prototypes |
| |
 |
 |
 |
 |
| Hazards |
Test Patterns |
Rorschack |
Glow in The Dark |
|
| |
|
|
|
| |
|
|
|
|
| |
|
|
.png)
