How do you say &fire hydrant& in French?
Well, I work at Lowe's and I used to work at Toys R Us and it's not the barcodes that set off the alarms. Sometimes it's a sticker with a very thin magnet underneath it (like at Toys R Us) and at Lowe's there's a little piece of plastic with a magnet inside that sets off the alarms. They are usually underneath or near the barcodes though.
Amber and Amber resin covers a wide variety of substances. It is often used in solid form and burned in incense mixtures. Most amber resins are soluble in a wide variety of organic solvents and the heavier molecular weight solvent solutions could be used in an oil warmer.