Create Attractive Vector Art objects for online game

I have 20-25 art objects of varying complexity to be created in vector art for an online game. Has to be colored as well. These are "collectible objects" that the player picks up from the game while playing. Eg: A colorful feather, a fruit, a rock, a beetle, a butterfly, a claw, an egg etc etc. These should look absolutely appealing, have very smooth and clean lines, and very eye-catching with brilliant colors. Freelancer should be a good free-hand artist, as these objects should have a drawn/illustrated look and not a 'machine-made' Photoshop look.