Blue's Clues Need To Know
See their "Restrictions on Use of Materials" statement. They are well known for strictly enforcing their intellectual property rights. Disney Online, with their various trademarked characters.
NFL Logos Need To Know
National Football League - See number 2 "Trade and Service Mark Rights". NFL Web Site; see registered trademark statement at the bottom of the page.
Pokemon Need To Know
The Pokemon registered trademark is owned by Nintendo. In regards to permission to individuals, they state that their policy is to decline use of their trademarks and copyrights. The Pokemon Web Site at www.pokemon.com shows the Nintendo copyright at the bottom of that homepage.
SpongeBob SquarePants Need To Know
See "All Nick", then, under TV Shows, select "SpongeBob". Near end of page under the Copyright statement, it says that Nickelodeon, SpongeBob SquarePants and all related logos and characters are trademarks of Viacom International Inc. Read Viacom's Ownership of Intellectual Property statement, especially the "You agree not to reproduce ... " and "may subject the offender to ... " statement.
Trademark Law: An Overview
Cornell University gives a brief overview of trademark law and links to resources.
Using and Enforcing Trademarks
Nolo Law For All: When can a trademark owner stop others from using it? Among other reasons, anti-dilution statutes can be a factor (the prevention of rendering it common through overuse). Note: If needed, Right-click on your Back Button to return here from the Nolo site.
Violations of Trademark
Artists Legal Primer, by Dee Dreslough: See the 6th topic "Common Violations of Trademark", which deals with drawings of a company's trademarks, such as of cartoon or TV characters, even when giving your drawing away (on a web site, for example). This would apply to drawing a trademarked character as a craft chart, as well.
What's The Difference Between Trademarks and Copyrights?
Nolo Law For All: Learn how trademarks differ from copyrights. Note: If your Back Button temporarily doesn't work after clicking on this link, just Right-click on your Back Button to return here from the Nolo site.