yeah i made one of these too. you can get 30ft of 10mm pipe in B&Q for around 28 euro.
it comes in a coil, you just need to wrap it around a corny or a paint tin or somehting to tighten up the coils. then you just either use hoseclips to put hoses on the end or solder some fittings to let you screw on the thoses or whatever. it's about 30 mins work.