Anytime there is a "sudden star" whose autograph is in high demand, you need to be EXTRA careful when purchasing their autographs. Here is a homemade "kitchen" forgery listed by eBay seller jessejamescline141833 who flat out lies and says this was signed IP.

This is a slow, shaky, poorly formed forgery and anyone who knows ANYTHING about autographs would be able to tell... Proceed with VERY HIGH caution if looking for a Bryant autograph right now.

http://www.ebay.com/itm/KRIS-BRYANT-AUTOGRAPH-2014-Bowman-signed-in...