can't you customize those somehow?

boot animation?  yeah,  I just deleted /system/media/bootanimation. zip to get the stock Android one back.  Skrag taught me that trick.

i want to customize mine but i don't know with what

cyanogenmod's is fine tho

Try these custom boot animations:

the last one is very clearly the best

is there a way to make the Nexus 7 boot up faster

I hate waiting a few seconds when switching it on

yes

quit being a baby

my milestone 2 takes about a minute or so to boot! crybabies

i just never turn it off
why would you turn a phone off