Seaponies are mermares are based on the very similarly-named Sea Ponies and somewhat similarly-named Fancy Mermaid Ponies of Generation 1 and the Mermaid Ponies of Generation 3.5. At the 2010 My Little Pony Fair and Convention, Hasbro reported that, at the time, there were no plans to incorporate seaponies into the show or merchandise. At the 2011, 2012, 2013, and 2014 Fairs, Hasbro representatives stated that seaponies were not planned for those years either. At the 2015 Fair, Hasbro reps acknowledged the presence of mermares in Under the Sparkling Sea and the sirens in Rainbow Rocks but still could not divulge any future merchandise plans.