By far one of the hardest props to build due to part rarity, this was seen in Ghostbusters 2 during the river of slime scene. Parts can be extremely expensive, especially the yellow fishing reel which is vintage and highly collectable in fishing fan clubs. Jackdoud over on gbfans has built a superb replica, the build process and part list can be found here http://www.bloody-plastic.com/props/gbslimescoop.html