Not the OP, but just trying to be helpful.

"Travelers" are paper packets that move through a manufacturing process with whatever material is being improved. Lots of machine shops have these printed out packets of specs, communications and notes that accompany a given order as it makes it's way through the process.

I'm pretty sure the "daisies" comment was related to how many shops escalate a given order by adding bright stickers or other obvious, visual indicators to the traveler, and shops can sometime become so overwhelmed that everything is escalated and all the bright travelers start looking like a field of flowers.