Querulous Quandaries: 

 This was a new one for even me. It happened just a few days after Christmas. 

Phone rings

(me) J. Sampson Antiques...... How can I help you? 

(man) Can you tell me it this is the right way to fix cranberry glass? 

(me) Fix it how? Is it broken? 

(man) No, no.  Its not broken, just faded. 

(me) Faded?

Now, get ready for it. 

(man) Yeah, I had someone tell me that these vases were cranberry but the color faded out.  If I was to soak them in cranberry juice it'd bring back that color.  

I'm stunned. 

(me) Sir, glass is an inert material.  You can't just soak it in a liquid and expect it to absorb that color.  All that will do is make them sticky. 

(man) Well shoot.  So I can't make them back to cranberry?

(me) They never were cranberry or they were a pale color of cranberry.  You can't make them anymore cranberry than you could cobalt or canary or emerald. 

(man) Canary?  

(me) Its the color of the bird not the actual bird. 

(man)  Well I never thought that!  Thanks for your help.

(me) Thank you. 

I'm thinking, "Well I didn't know.  You thought that you could soak clear glass in cranberry juice and make cranberry glass.   So hell, I thought that you were considering grinding up some birds to make yellow.