Cheap, black "Industrial" Rubber Gloves...

Bought in Poundland for all of £1!

Two pairs, thicker / more durable than your average washing up gloves and a good match for what is seen in the screenshots from the first film:

http://www.gbfans.com/image.php?url=/images/equipment/reference/7/22.jpg

Although.. I doubt they would be any good for handling ectoplasm..