If you're going to go through that much trouble, the Colorado School of Mines does a high-speed photography workshop every so often. You are photographing explosives of various types. I would imagine clothes worn during the workshop would be very interesting to airport scanners with a bonus of learning about high-speed photography.

I have been wanting to book a flight to Colorado.

1. Find harmless/odourless/cheap chemical with some nitro groups or otherwise molecular shifty character.

2. Refill electronic air-freshener dispenser with said liquid.

3. Deploy dispenser in pre-security airport coffee shop or other likely congregation spot.

4. Purchase high-backed leather chair & fluffy white cat; Cackle maniacally.

8. Get shot at multiple times