I have a couple pieces of jewelry from my Barret cosplay, a Cloudy Wolf ring and a set of dog tags that I wear occasionally.
The best way that I keep my cosplay with me outside of con-time, though, is tattoos. Very soon I will be getting Barret's tattoo, which will obviously always be with me.
I think these little ways of incorporating the character into your own daily life is a great way of not only keeping the character close to you, but like you said, keeping yourself close to Kumoricon and the fandom as well.