Pickup, an ability that allows your Pokémon to randomly pick up an item has got a new twist to it, first is a list of all Pokémon with the ability:

Anyway, in Pokémon Emerald, Pick-Up is determined by level aswell adding an added element for those who dont both raising their Zigzagoon. Below is a list of the items you can get (hover over the pictures for the name...especially for TMs):

Lv.	Common	Uncommon						V. Unc.	Rare	V. Rare
1 - 10
11 - 20
21 - 30
31 - 40
41 - 50
51 - 60
61 - 70
71 - 80
81 - 90
91 - 100