Here's what I hauled over:

plastic container with Vallejo acrylic paints, paint pallet, sprue cutter and cutting pad.

Tray from a fishing tackle box with knives, sanding sticks, toothpicks, paint brushes, tape, clamps, paint pens and glue.
All stuffed in my checked bag.
No I didn't pre clear any of the stuff. In the past I did haul Tamiya enamels and thinner along with their glues. I guess I'm a little more paranoid now.
I'm sure the bag was X-rayed before it got on the first plane, the paint pens and glue bottle should have showed up on the X-ray, but not their labeling. So they must have been the wrong shape for raising interest. My last trip over, someone did open my luggage to see if I was carrying more than the legal amount of currency. But not this time.
I think I got the cutting pad at Michaels along with a knife set.. Also turns out to be a great mouse pad on their glass topped desk.
The kit is Monogram's 1/72 F8F Bearcat.