The Green Glass Door game

This is a thread for the Green Glass Door game. For those who don't know the rule of the game, the point of the game is to try to guess what can and can't go through the door. Those of us who know the rule of the game, we state in our posts various things that can and can't go through the door. If you figure out the rule, please don't give away what it is, that just ruins the fun. Please limit the number of items in a post to three(and don't post twice in a row, that's just spam) I will start:

1. Trees can go through, but plants can't
2. Tigger and Pooh can but Kanga and Owl can't
3. The Sun can't to through but the Moon can

I have positivly absolutly in all ways no clue.

Ok Ok Ok, how about this....

The Tissue can go through, but not the box? How about that?

Good one Jessica. Here's some more, maybe they'll help you figure it out Brandon

1. A Pillar can go through but a column can't
2. Plants can't go through but trees and grass can

Jessica can but obasi can't.
Passwords can but catchphrases can't.
stockbrokers can't but Bookkeepers always can.

w that sounds crazy. Do you guys know.

Randomness can go through but not spam.
a refrigerator cannot go through, but a freezer can.
A doof can go through, but not a retard.

excellence can go through but not superiority.
candy cannot go through, but jolly ranchers can.
Kelly can go through but Jesus can't.

Doom can go through but not destruction
kids can't go through but teens can
Bees and butterflies can but not a ladybug or whasp

I don't appreciate not being able to go in, Perry. lol.

BBK can go through, but Brandon can't.
Millipedes can go through, but centipedes can't.
Ya'll can go through, but I can't.