HAHA, you have never sold anything on eBay have you? It is 100% buyer protection. No matter what!
DISREGARD all of this crap about it being a gift and therefore with no recourse...
All they'd thave to do is initiate a credit card chargeback and VOILA, no more $$$ for you.
I know this because it happened to me with "gift funds", on a "Not Received" case that I WON with both eBay and PayPal. The scammer lost both attempts, so he decided to do a chargeback too.
Here's the kicker: I had shipped the item via signature required certified mail (why I won both of my cases), but by the time the chargeback hit my account, the information on USPS.com had expired, and even though I had the PHYSICAL signature card, PayPal required it to be accessible online via tracking. Because it wasn't, it took me literally 4 days worth of calls to find a person even willing to help, and I had to physically send her the Certified reciept (thank FSM I saved it... months after winning both cases).
Lesson learned: your money is almost NEVER safe with PayPal.
I would 100% not send to anything but the address on record with PP, take videos of the boxing/labeling, get signature confirmation (to addressee only), video the mailing, and save EVERYTHING.
Sound extreme? Wait until you get the "Notice of chargeback" and your account goes negative $100's (or $1000's) of dollars.
Be careful.