Brick, Round 2 x 2 x 1 2/3 Dome Top (Undetermined Type)

Brick, Round 2 x 2 x 2/3 Half Circle Extended with 2 Studs and Curved Top

Brick, Round 1 x 1 d. 90 degrees Elbow Macaroni - No Stud - Type 2 - Axle Hole

Brick, Round 1 x 1 x 2/3 Half Circle Extended with Side Stud

Brick, Round 4 x 4 x 2/3 Dome Top with Hole

Brick, Round Corner 3 x 3 x 1 without Studs

Brick, Round with Indented Top and Cat Ears

Brick, Round 2 x 2 x 2 Robot Body - with Bottom Axle Holder x Shape x Orientation

Brick, Round Corner 4 x 4 Macaroni Wide with 3 Studs