Some ideas I had :
It would be cool to build a Penny Farthing (aka an old timey bicycle), and ride around with a top hat and a giant handlebar mustache. BTW while searching for penny farthing sites I found this insane guy riding around the world on a penny farthing .
Get a real bear skin and wear it as a cloak. Ideally get one with the bear head still attached so you can wear the head on your head. Strap the arms to your arms, then you can get down on all fours and walk around like a bear too. Some hippie might give you shit about fur, but you can always lie and say you're an amazing artist and you made it from synthetics.