Just some thoughts, for what they're worth...my opinion, and nothing more:
Here is a page with autopsy photos--
WARNING, GRAPHIC!!
http://zyberzoom.com/JonBenet.html
No doubt y'all have seen these before. The first one appears to show saliva and mucous had dribbled down the right side of JonBenet's face from the nose and mouth, as if she were lying down at that point on her back, with her head turned to the right. Thomas also said there was a drop of blood-tinged mucous or saliva on her upper right sleeve; I'm deducing this was from her head being turned to the right and the fluid dripping down the face, onto the upraised arm/sleeve.
If saliva ran down the right side of JonBenet's face from her mouth, she didn't have duct tape on her mouth yet, did she? So why was she dribbling saliva down her face in that position unless she was unconscious before the duct tape was applied? And why apply duct tape to an unconscious child?
These are questions that I'd like to see the experts explain, those who did the autopsy, studied the lab reports, and know what they're talking about from experience, objectively testifying under oath, with no dog in this hunt.
The "black duct tape" has a "white" side to it, or it used to, at any rate. Years ago, some of us wondered about the "white" tape on the blanket. So I bought some black duct tape: the cloth kind. It was indeed white or pale/ivory on the sticky side. So I can only assume, without the ever elusive expert testimony, the black duct tape in the picture on the blanket was like that and the white, sticky side was up, black side down on the blanket, and that's what we see.
As to how sticky it was from the roll: I put it on my mouth and it was indeed quite strong. It hurt to pull it off. I don't advise trying it. Ouch!
Since many items were removed from the home by Pam Paugh, we cannot say for certain what was in those. She certainly could have unknowingly spirited away many things in something like the golf club bag: Bloomies undies; a roll of duct tape; a roll of cord; a dark cloth; etc.
Did she? We'll never know, will we?
But one thing we do know, and the Ramseys, Wood, and the RST are the source for it: the alleged actual package of remaining underwear, the (children's 12-14) Bloomies which Patsy bought in New York for her niece, from which the size 12-14 pair found on JonBenet allegedly came, were "found" in the Ramseys' "belongings" by the Ramseys/an investigator who worked for them. The story goes this package was found some time after LE released the house to the Ramseys, and that LE had somehow missed gathering them, though LE said in Atlanta they had collected every pair of underwear in JonBenet's panty drawer. (The story as to exactly when and where these were found changes and has few, if any, specific details...as per RST usual.)
That size 12-14 Bloomies package was allegedly then kept from LE for five years, though the Ramseys and their lawyers and investigators admitted they well knew that package was important evidence in the murder case. Even when questioned EXTENSIVELY about the Bloomies and told the significance of them by Boulder LE in Atlanta in 2000, the Ramseys still withheld that evidence for another 2+ years until they were given to Lacy. (The Bloomies were so large that there is no practical way JonBenet could possibly have worn them while upright and moving, though Patsy claimed JonBenet put them on herself and wore them to the White's home that evening, as well as when Patsy changed the sleeping JonBenet into the longjohns. The question remains: who put them on her and when?)
My point is this: we cannot state conclusively the Ramseys did not have means and opportunity to remove a roll of duct tape, a roll of cord, etc., from the home after the murder. We cannot state conclusively LE did not miss finding those items, among other important evidence, when the Ramseys themselves have admitted to removing items from the home and knowingly withholding evidence for five years.