Bid UKGumtreeFreecycle
A consignment store will take in good quality items and put them up for sale for a certain time period. If they don t sell by a given date, you pick them up and bring them home.
Ebay is best.
Gumtree
craigslist
if you know their value you could try a local flea market or craigslist.
how much do you want for gradma?
what kind of items are you selling? etsy.com or ecrater.com