I have a bath tap with an acrylic plastic handle. The handle is held in
place with a screw in the centre of the top. Above the screw there is a
recessed plastic disk (red or blue).

Any suggestion as to how I might remove these plastic disks without
damaging the handle or the disk. The disks have been there for some time
so no doubt held in place by a little grime.

--
Michael Chare