The inside of a used condom? I could search the streets for one of these late at night and then rub the contents into the victims panties and fingernails.
The inside of a sanitary pad bin? I could visit the local restaurant toilets to open up one of those blue bins and retrieve a used tampon or pad. Is the DNA male or female? I could then rub the dried blood on the victim in the same manner as the condom contents.
The inside of a toilet bowl? I could go scrounging around inside the bowl with the panties in hand trying to wipe off as much matter as possible so that it would all be a pungent mismash of others DNA. Would that work?

I am not a scientist and thus not an expert on the DNA situation. But what matter exactly brings DNA? and if there was no evidence of semen on JonBenet then what was the DNA part of? Saliva, sweat, tears, skin?
Somebody please explain..

But one thing you forget,,, the dna is not from seminal fluid.

Neither the dna from the nails nor the dna from the panties is from seminal fluid, so it didn't come from some midnight trip to a seedy part of town to locate a publicly discarded condom.

Oh, and you forgot the pipettes and tweezers with which to carefully handle and deposit the dna.

And be careful at this place where you obtain the dan and later transport it,,,you can't contaminate it with your own dna remember!

When the person you just injured looks angry and puzzled, just mumble something about voodoo and chicken dances. They will NEVER notice thatanything out of the ordinary happened.

Do you think the DNA was planted by the intruder, or it is the intruder's? I am a little confused on this point- was it left by accident or was it left to foil?