I am curious about your experiences concerning Moiree. I noticed it pretty often in blue jeans. It is not such a big problem to get rid of it but I am interested in other experiences with this effect.
See example picture, on his left leg (right for the viewer) you can see it
|Thunderheads With Egret by Buzz Lightyear|
|Double Rainbow; Abiquiu, NM, USA. by abiquiuense|
from After the Rain
|White Tern-2289 by vbuhay|
from A Whiter Shade of Pale