| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.10 | $4.58 | Mountain Bricks (759) Shipping ~$4.48 Minimum Order $1.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.20 | $5.20 | Three Brick Bears (132) 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 (197) Shipping $4.74 Minimum Lot Average $0.50 | |
| Used (Like New) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.221 | N/A | Just Another Brick In NZ (91) Request a Shipping Quote Minimum Order $3.04 | |
| Used (Acceptable) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.225 | $5.22 | JVN E-Commerce LLC (32) Shipping ~$5.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.232 | $7.65 | Maple Bricks (1204) Shipping $7.42 Minimum Order $2.17 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.25 | $2.64 | MiBrix (645) Shipping $2.39 Minimum Order $5.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.25 | $5.75 | Block Tuarach (130) Shipping ~$5.50 Minimum Order $3.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 4 | $0.26 | $26.26 | DD Bricks (4779) Shipping $26.00 Minimum Order $5.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 2 | $0.286 | $6.79 | Brick Junkies (504) Shipping ~$6.50 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.286 | $7.40 | Barrie Bricks (1040) Shipping $7.12 Minimum Order $1.45 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.291 | $4.89 | Block of Flats (276) Shipping $4.60 Minimum Order $1.36 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.301 | $19.06 | Sapphire Bricks (224) Shipping $18.76 Minimum Order $5.23 | |
| 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 | $0.305 | $7.06 | Bricklanta (88) Shipping ~$6.75 | |
| 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 (285) Shipping $4.49 Minimum Order $1.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.33 | N/A | pakelbrickshack (2247) Request a Shipping Quote Minimum Order $0.67 | |
| Used (Like New) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.37 | $5.62 | DnA Brix (953) Shipping $5.25 Minimum Order $5.00 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.424 | $5.95 | Great Brick Lab (3300) Shipping $5.53 Minimum Order $18.43 | |
| Used (Good) | Yellow Tile 2 x 2 Round with 'KNOCK KNOCK' Sticker | 1 | $0.458 | N/A | Smuddgers Brickin It (1149) Request a Shipping Quote Minimum Order $1.31 | |