Hi Wotto,
I made a pair by using kids plastacine (not sure if I spelt that right). Pushed the original
flipper bat to the point where the boney part met the flat part of the flipper bat. Removed
the original carefully and then just poured in fiberglass. Let it dry solid and then removed it
from the mould. You then have to flatten the bottom so you can stick it to a standard flipper.
