| Used (Good) | Reddish Brown Professor Sinistra Minifigure Head | 1 | S$ 1.40 | S$ 8.46 | BRICKMATEY (113) Shipping S$ 7.06 Minimum Order S$ 3.01 | |
| Used (Good) | Reddish Brown Professor Sinistra Minifigure Head | 1 | S$ 2.00 | N/A | The Brix Mix 2 (138) Request a Shipping Quote Minimum Order S$ 6.74 | |
| New | Reddish Brown Professor Sinistra Minifigure Head | 377 | S$ 2.03 | N/A | BearBricks.pl (29) Does not ship to SG Minimum Lot Average S$ 0.53 | |
| New | Reddish Brown Professor Sinistra Minifigure Head | 1 | S$ 2.13 | S$ 20.38 | BSW Bricks (446) Shipping S$ 18.25 | |
| Used (Good) | Reddish Brown Professor Sinistra Minifigure Head | 22 | S$ 2.19 | N/A | Brick Mine 2020 (545) Request a Shipping Quote | |
| Used (Like New) | Reddish Brown Professor Sinistra Minifigure Head Used (Like New) | 15 | S$ 2.41 | S$ 12.65 | Sky bricks shop (178) Shipping S$ 10.24 Minimum Lot Average S$ 1.83 | |
| New | Reddish Brown Professor Sinistra Minifigure Head | 24 | S$ 2.60 | S$ 12.84 | RoyalBrick (103) Shipping S$ 10.25 Minimum Order S$ 7.02 | |
| Used (Good) | Reddish Brown Professor Sinistra Minifigure Head | 1 | S$ 2.61 | S$ 5.85 | Saviory Bricks (4157) Shipping S$ 3.23 Minimum Order S$ 5.57 | |
| New | Reddish Brown Professor Sinistra Minifigure Head | 4 | S$ 2.69 | S$ 10.75 | LS_Bricks (80) Shipping S$ 8.06 Minimum Order S$ 24.27 | |
| New | Reddish Brown Professor Sinistra Minifigure Head Hollow Stud | 1 | S$ 2.75 | N/A | Brick Den AU (1014) Request a Shipping Quote Minimum Order S$ 8.76 | |
| New | Reddish Brown Professor Sinistra Minifigure Head | 1 | S$ 2.85 | N/A | Brickville (135) Request a Shipping Quote Minimum Order S$ 7.02 | |
| New | Reddish Brown Professor Sinistra Minifigure Head | 1 | S$ 2.89 | N/A | One Stop Bricky (791) Request a Shipping Quote | |
| New | Reddish Brown Professor Sinistra Minifigure Head | 1 | S$ 3.23 | S$ 12.79 | Bricks By Tagus River (310) Shipping S$ 9.56 | |
| New | Reddish Brown Professor Sinistra Minifigure Head | 5 | S$ 3.27 | S$ 22.84 | mylostbrick (2260) Shipping S$ 19.56 | |
| New | Reddish Brown Professor Sinistra Minifigure Head | 1 | S$ 3.40 | S$ 6.64 | Saviory Bricks (4157) Shipping S$ 3.23 Minimum Order S$ 5.57 | |
| New | Reddish Brown Professor Sinistra Minifigure Head | 1 | S$ 3.53 | S$ 25.43 | BricksfromColorado (1271) Shipping S$ 21.90 | |
| Used (Good) | Reddish Brown Professor Sinistra Minifigure Head pre owned condition - may have slight scratches | 1 | S$ 4.04 | N/A | Play Build Create (77) Request a Shipping Quote | |
| New | Reddish Brown Professor Sinistra Minifigure Head | 1 | S$ 4.84 | N/A | Teton Bricks (341) Request a Shipping Quote | |
| New | Reddish Brown Professor Sinistra Minifigure Head | 3 | S$ 5.26 | S$ 27.49 | Marlowe and Moore Store (88) Shipping S$ 22.23 Minimum Order S$ 6.74 | |