Small amount of insulation that goes into the ceiling (Redditch B97)

I am looking for a small amount of insulation that goes into the ceiling before you put plaster board up. Due to a leak I have two holes that need to be re-insulated. About 2ft x 1 maximum (each). If you have any left over I would really appreciate it and can collect from Redditch, Bromsgrove or maybe Solihull/Monkspath. Thanks