Figures of Doppelganger and Lily were planned by Jazwares but were canceled for unknown reasons. The cancellation seems to have been late into production/possibly last minute, as the figures are advertised on the boxes of all the other figures.

The company Jazwares used to have the Scribbelnauts license and created several pieces of merchandise, including plushes and toy figures.

In October 2009, a special Halloween-themed level in the original game was exclusively released to attendees of the London Dungeon on October 31st. This was the only time the level has ever been publicly released and it was only available from noon to 3 p.m. The level is now lost media

There are two canceled Scribblenauts games. Scribblenauts Worlds was canceled sometime in 2013 due to poor test screening results and Fighting Words was canceled in March 2016 due to management changes at Warner Bros., leading to the layoffs of 45 5TH Cell employees.

An unused script for level instructions found in the original game’s files suggests levels were planned that would have removed Maxwell's notebook. None of the accompanying "notebook-less" levels have been found, possibly suggesting the idea was scrapped before any were designed.

Scribblenauts Unlimited included characters from the Mario and Zelda series as a special launch bonus, as the game was a Wii U launch title. These characters were exclusive to the Wii U version in North America and were included in both the Wii U and 3DS versions in Europe.