Maybe you could announce to everyone that you are now following the Duck God. Wear only orange on Tuesdays and insist they take their shoes off and turn around anti-clockwise before they enter you house. Wave your arms around chanting to 'cleanse their auras' as they enter.
Set up a little table in the corner and place random objects such as your hairbrush, blender and some vacuum cleaner bags on there. Surround them with candles.
If there is a family function you don't want to go to, tell your family you cant possibly go as its Sacred Purple Day.

A few months of this and they will be relieved when you tell them you got bored with it and have decided to go back to normal and never give you crap about it again.....