Candy floss (or cotton candy) is great, but expensive to buy and hardly worth investing in a dedicated machine.
This is a quick project using an existing kitchen pot (unharmed) and a handful of junk that you probably have lying around to make your own candy floss from ordinary table sugar.
Essentially all you need for a candyfloss machine is a container of sugar with tiny holes in that you can heat (to melt the sugar) and spin around (to throw out the little threads of sweetness). We'll put this inside a big pot because you don't necessarily want strands of re-solidified sugar all over your kitchen.
I'm entering this instructable in the Jury-Rig It contest 'cos it's a treat-machine rigged up from junk bits I had lying around.
Step 1: Things you need:
A jet-lighter (£3 off ebay). These are lighters that burn with a blue flame. They are hotter than normal lighters and don't cover everything in soot. Get one that locks "on" because you don't want your arm covered in candy-floss from holding it.
Small DC motor (e.g. 9V - £1 or so again off ebay)
Battery for motor (pp3 in my case)
Small tin of food. Mine was around 6cm high and had kidney beans in. Tuna tins would be the right size but might give you fish-flavoured candy-floss.
Small lid in which your lighter will stand (miik bottle lid in my case)
Deep pot or bucket - the one in the first picture was much too small. I used a stockpot in the end but a clean bucket would be fine.
Long baton - longer than your pot is wide. I used the runner from an old dishwasher drawer but anything wood or thin metal would work.
Long bar or tube as a stand-off (about 6"). I used a brass bar because I had it to hand and brass is nice and soft. A wooden dowel would probably work too.
Small nut, bolt and washer. I used steel so that it would tap itself into my brass standoff.
Drill with bits including a very small (1mm or less) bit.
Tin snips or Can-opener