Don't feel like a slacker, Ames, and thanks, guys. I compiled these links a two or three weeks ago when I really started thinking about the tape and the fibers and the doll, so all I had to do was go copy them here. I'm just glad others have been discussing this for me to follow and learn from.
If those fibers and the piece of tape came from the Molly doll, imo, that further distances the possibility that an intruder was the killer. I think a killer definitely would have brought their own tape for the job, and I have a REALLY hard time believing that the killer would have known about tape on AG dolls and lucked out by finding just such a doll, with tape on it, to place on JonBenet's face. I also don't believe this killer would have gone and ordered another Molly doll in JonBenet's name after the murder, and I have to wonder...with all Pam was fetching - passports, christening gowns, funeral clothes, golf bags - why the AG dolls? JonBenet didn't need them anymore, and according to Patsy, being around things that reminded her of her lost daughter gave her anxiety attacks.
I find it odd that this particular bit of evidence and theory concerning the dolls and tape has been overlooked as long as it has, and I really have to wonder, if the Rs did not order a new doll, why they never thought it odd or suspicious that a replacement for Molly was ordered in JB's name and sent to Access Graphics and had that looked into.