Try slothball.com
Or if you're at HG check out their stand, all catch cups are the same.
If you need it fixed in a hurry and it's only the tab you can try the 'Ghetto fix' get a small self tapping screw and screw it throught the cone to replace the broken tab, if you're unsure hwat you're doing either don't do it or check out the many many threads on pbn
A.B
p.s it works