Alannah Myles sells a few items on her Etsy shop. Cheapest I see is $13.48 personalized and signed on her letterhead.

https://www.etsy.com/listing/654882498/alannah-myles-autographed-le...

CDs are more expensive. Black Velvet signed copies are $83.41. Listed as a collectors item and this is what is in the description...    "PLEASE NOTE: There are only 7 CDs in stock and the CD is no longer in print (legally). All other similar copies sold as new are fraudulent sales unsupported by the artist. Last Chance Texaco.."

https://www.etsy.com/listing/113278860/alannah-myles-black-velvet-cd