| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.10 | $4.90 | Mountain Bricks (762) Shipping ~$4.80 Minimum Order $1.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.20 | $5.20 | Three Brick Bears (141) Shipping ~$5.00 Minimum Order $3.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker sticker edge pealing up a bit | 1 | $0.20 | $4.94 | Detroit City Bricks (204) Shipping $4.74 Minimum Lot Average $0.50 | |
| Used (Like New) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.213 | N/A | Just Another Brick In NZ (93) Request a Shipping Quote Minimum Order $2.93 | |
| Used (Like New) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker Stickers may have been applied imperfectly (by a child) but are not damaged | 1 | $0.218 | $6.97 | Bricklanta (93) Shipping ~$6.75 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.226 | $5.73 | Walking On Bricks (4) Shipping ~$5.50 Minimum Order $2.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 2 | $0.236 | $6.74 | Brick Junkies (516) Shipping ~$6.50 | |
| Used (Acceptable) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.237 | $6.24 | JVN E-Commerce LLC (38) Shipping ~$6.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.25 | $6.25 | Block Tuarach (133) Shipping ~$6.00 Minimum Order $3.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 4 | $0.26 | $26.26 | DD Bricks (4856) Shipping $26.00 Minimum Order $5.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.269 | $2.66 | MiBrix (669) Shipping $2.39 Minimum Order $5.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.277 | $4.66 | Block of Flats (288) Shipping $4.38 Minimum Order $1.30 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.281 | $7.27 | Barrie Bricks (1047) Shipping $6.99 Minimum Order $1.42 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.291 | N/A | Sapphire Bricks (242) Does not ship to US Minimum Order $6.33 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.30 | $5.37 | KAT-KNAPP (326) Shipping ~$5.07 Minimum Order $3.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.318 | N/A | pakelbrickshack (2262) Request a Shipping Quote Minimum Order $0.65 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.318 | $4.72 | 1Benisin (86) Shipping $4.40 Minimum Order $10.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.327 | $4.82 | Brick_Squatch (293) Shipping $4.49 Minimum Order $1.00 | |
| Used (Like New) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.37 | $6.32 | DnA Brix (967) Shipping $5.95 Minimum Order $5.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.443 | N/A | Smuddgers Brickin It (1168) Request a Shipping Quote Minimum Order $1.27 | |