Lightbulb Art - Giant Squid

I was playing around with putting dead lightbulbs in liquid instead of putting liquid in dead lightbulbs when I noticed something about one of the skinny bulbs that Manon gave me. It looked a lot like the head of a giant squid.
And Manon likes giant squids. (Well who doesn't, but Manon especially likes giant squids.)
So I made her one to go on her desk. All the parts were scavenged except the mineral oil.
The tentacles are copper wire (from a broken slide projector power supply) and broken glass (mostly smashed windshield from an accident on Gladstone, and a few pieces of assorted glass collected at the Westbound bus stop at Lebreton Flats).
The sea floor is marbles that a nice fellow gave me at the Great Glebe Garage Sale and more broken glass.
I think the jar used to have pickles in it.
The liquid inside is mineral oil. I used mineral oil because:

• It has an index of refraction of more than 1.4, this means that it magnifies better than water or alcohol;
• It is relatively nontoxic (this was all baby oil, therefore food grade); and
• The metal bits will not rust.

Unfortunately, it's hard to scavenge mineral oil. I put a fair bit of effort into finding a good price for it. Mineral oil can be bought in bulk. Not at a hardware store, not at a paint store, not at a drugstore. At least none of the many that I tried. But at the Petro-Canada bulk oil depot on Merivale Drive. When I last spoke with them, they had one 20-litre bucket of food-grade low-viscosity mineral oil priced at $3.99 per litre or $79.80. (I wanted low viscosity because it pours faster and there isn't much difference in the refraction index between the lowest and highest viscosities.)
But at Dollarama, you can buy a 266ml bottle of baby oil for $1.00. I believe that works out to $3.76 per litre. You wind up with a whole lot of little clear squirt bottles to re-use or recycle, but you don't have to buy 20 litres at a time. (This project required 3.5 litres of oil.)
Links:

• Giant squids on Wikipedia
• My other lightbulb art