>Which do you have,

1/144
Tallgeese III
Gundam Wing Zero custom
Buster Gundam
Duel Gundam A.S.
Astray Gundam Blue Frame
Double X Gundam
X Gundam divider

1/100
Zeta Gundam Sentinel
Gundam F91
Sazabi

>how do you build them,

with this hands of mine.

>what's your favorite,

Buster Gundam, since I modified it to the extreme.

>what do you want,

Kampfer and some more UC models.

>tips,

Throw away the boxes or cut them and place them in an album or folder. Those boxes really taking up place if you are not a neat person.