General:

http://www.businessinsider.com/foods-that-are-banned-in-the-us-2016-11/#8-haggis-8
https://www.therichest.com/rich-list/most-shocking/15-dumbest-products-banned-in-the-united-states/

Toys Containing Phthalates:
http://www.cnn.com/2017/10/20/health/phthalates-banned-in-childrens-toys/index.html

Unpasteurized Dairy Products:
http://theplate.nationalgeographic.com/2015/09/30/some-like-it-raw-the-state-of-unpasteurized-cheese-in-the-u-s/

Shark Fins:
http://oceana.org/press-center/press-releases/congress-introduces-legislation-ban-trade-shark-fins-us

Antibacterial Soap:
http://sitn.hms.harvard.edu/flash/2017/say-goodbye-antibacterial-soaps-fda-banning-household-item/

Toyota Hilux:
https://www.adventure-journal.com/2017/02/death-tpp-means-no-toyota-hilux/

Hoverboards:
https://www.huffingtonpost.com/entry/us-bans-hoverboard-imports_us_56e9c5c3e4b0b25c91845854

Beluga Caviar:
http://www.winespectator.com/webfeature/show/id/United-States-Bans-Beluga-Caviar-From-Caspian-Sea_2747
http://www.nytimes.com/2005/09/29/politics/us-to-ban-imports-of-beluga-caviar.html

Cuban Cigars:
https://www.thoughtco.com/why-cuban-cigars-are-illegal-in-the-u-s-719650

Bath Salts:
http://newsfeed.time.com/2012/07/10/obama-signs-federal-ban-on-bath-salt-drugs/
http://www.narconon.org/drug-abuse/effects-of-bath-salts.html

4Loko:
https://www.theatlantic.com/national/archive/2014/03/rip-four-loko/359602/
https://www.villagevoice.com/2010/11/16/r-i-p-four-loko-here-are-the-five-stupidest-things-people-have-done-while-drinking-you/