I'm going to tell you how you can get get some high lvl enchants which are "Requires a lvl 35 or higher item" to you lvl 20-29 twink.
The "Requires a lvl 35 or higher item" does not mean requires lvl 35 to use, it means ITEM LEVEL 35 or higher, which is a completely different thing.
Though there are only a few items in the 20-29 bracket which has Item lvl 35 or higher, I'm going to list the ones who are useful:
Weapons:
Windstorm Hammer
Crescent of forlorn Spirits
Skullbreaker
Cloth Armor:
Civinad Robes
Arcane runed bracers
Gallan Cuffs
Zealot's robe
Leather Armor:
Raptor hunter tunic
Tiger Hunter gloves
Mail Armor:
War rider bracers
Shields:
Marbled Buckler
Crest of darkshire
Forcestone Buckler
Vile protector
Hope this will help you pwn more with your twink in battlegrounds!
Cheers Dezotode