One of my 4 knives is a nice 7" chef's knife I got at the Goodwill. Really, it's ok to donate them. I'll go check out the Goodwill near you in a week.
Shot glass: if you aren't sentimental about those things (I'm not), I'd donate it. Some needy college kid who has no other way to imbibe will buy it at the Goodwill for a quarter. Needy kid gets drunk; Goodwill earns 25 cents.
Cell phone: If your son doesn't need it as a toy (we usually reserve broken ones for that), women's shelters can really use them for the women to have 911 capability. That's worth the trouble of erasing your stuff, no?