NorthAmericaFlags provide flags for 23 different North American countries that can be use as stickers in Imassage , the app contain the following countries :
Antigua and Barbuda, Bahamas, Barbados, Belize, Canada, Costa Rica, Cuba, Dominica, Dominican Republic, El Salvador, Grenada, Guatemala, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Trinidad and Tobago, United States.
the art work was done by http://www.3dflagsplus.com.