It is permissible to utilise the skin of the Qurbani Animal for one's personal use, e.g. as a Musallah or to make a pouch, etc. However, if the skin is sold, it is not permissible to use the income thereof for oneself. It is Wājib to give this money in charity. Sale of the skin without the intention of donating/ giving the money in charity, is not permitted. (Durrul Mukhtar)
It is not permissible to give the skin in lieu of any services rendered. (Durrul Mukhtar)
Since many choose to donate the skin of the Qurbani animal to a charitable cause, it is imperative that the skin is given to a reputable and reliable recipient or organisation, bearing in mind that the monies accrued must be donated to, or spent on the poor and needy and not on Masjid, Madrasah or any other such initiations for their running expenses.
