I have bought and sold over 1000 smaller items on eBay and Amazon, and with each transaction, I have kept almost all of the packing materials to reuse. An oversized box full of packing peanuts with the item sitting on the bottom of the box, right up against the cardboard, would make me grit my teeth, as on a few occasions this did not prevent any shipping damages. Putting the item in the box, then dumping peanuts on top of it, is not creating adequate cushion...swing and a miss, as they might say. Eventually, I accumulated a large garbage bag of peanuts as I preferred to use bubble wrap and chunks of styrofoam from electronics purchases. Then it dawned on me to use up the plastic grocery bags that were accumulating in the pantry by filling the bags half full with peanuts then tying the handles off...this allows the bag to be formed around the fragile item and can be used to pack the box contents firmly so the fragile item does not rattle around. Also, the recipient doesn't have that shipping peanut mess to contend with as the bags are contained...several of my recipients have remarked that this was a welcome relief and something that they will use in the future. The only casualties have been some bootleg salsa jars in care packages that did not survive their respective trips to Illinois, my friend reported back each time that the boxes themselves looked like they had tire tracks on them and was relieved that only one jars was busted each time...
If ya look at how new bulbs are packaged, you can get an idea of which direction to go with how much cushion to provide... economy sometimes needs to give way to reliability with precious cargo