What to do With Forbidden Items after Repentance

Sale of such banned articles is not permissible in Islam. The Prophet (peace
and blessings of Allah be upon him) said: “When Allah forbids a thing, then
He forbids its price (as well).” (i.e., its sale/purchase/trading.) [Abu
Dawood, and it is authentic] Also, you know well that whomever you sell it
to will use it in a forbidden act; thus, it is not permissible for you to
sell it to him as Allah has prohibited this in commanding us (in meaning):
‘do not assist one another in sins and enmity’.

And no matter how much you lose in worldly wealth, have faith that what is
in store with Allah is worthier and longer lasting. He will compensate you
with His grace, and His favor and His generosity.

And Allah knows best.