Guild Wars 2

Many (if not all) costume sets with toys come with a skill to summon a creature which works pretty much as a miniature, following player around and looking amusing. Unlike minis, however, these summons only last for 70 seconds and as much as I like to have a feline familiar following me, having to re-cast it over and over again is really annoying so I end up never doing it. Making them last forever or at least extending their summon duration would not only make them more popular with players, but also potentially boost costume sales by a bit, seeing as the costume would come with something player can show off even while not having town clothes toggled on. The alternate option would be just to get rid of the skills in general and give the players with costumes miniatures of the creature they were before able to summon.

I love my little chainsaw wielding skeleton, but re-summoning it all the time is so annoying.
Yep, permanent / extended duration or change into a regular mini pet please.