If they are what we in the UK call a flock finish these can be refurbed by a smart repairer in place, i have done this type myself .
The fibres are mixed in a jar until the required match is for colour is made, then the area is coated with spay adhesive and the new flock
is prayed from a puffer fitted to the top of the mixing jar.
this how to do a seat but same principle for smaller items, different flocks can be nmixed very much like paint.