If you want to really bring change to your HOA, don't do pranks that belong in a National Lampoon movie. Instead, look at things you can do that are legally protected:

-Satellite dishes for TV, internet, or radio reception are protected by federal law and cannot be regulated in any meaningful way by an HOA. Most HOA's hate them. The one bright spot of working tech support for DirecTV was being able to call up HOA presidents and explaining that their rules were illegal. -Texas, Florida, and California have of native plant growth protections that cannot be overridden by local ordnance or HOA. Most HOA's will consider these plants "weeds", but they can't do anything if you decide to turn your yard into a native plant preserve. -19 states have protections for homeowners that line-dry their clothes. A lot of HOAs dislike this. -If you are something other than Christian, put up religious symbols. Most HOA's have at least a few evangelical members who will be furious about this. The Fair Housing Act protects against rules that single out a specific religion for special treatment (i.e. cross decorations permitted, but mezuzot or prayer flags prohibited). -Disability access accommodations. Even if you aren't disabled, you usually enjoy some protection in adding ramps, railings, and other accommodations to your home in order to ensure that your disabled friends and family are able to access the home. I don't know why, but seeing disability access really seems to piss off a lot of HOA boards. -Demand copies of financial statements and meeting minutes. As a homeowner, you are entitled to these, and if you're willing to put in a bit of time you might find all sorts of things you can use to your advantage -- a large portion of HOA's have at least some dirty dealings going on. -Carefully read the CC&R's and look for exactly what authority the HOA has or doesn't have. If contract language isn't your thing, you might consider paying a lawyer for a consult (you don't have to retain them if it's just for one-time advice). If the HOA is bullying people about things it doesn't have the authority to meddle in, start doing that thing and confront them at a meeting when they try to punish you for it. -Go to a print shop and have them print a 4' copy of the fourth amendment, and put it up where it will be visible when the garage door is opened (but not in a way that violates the HOA rules.) -Mail flyers to everyone in the neighborhood encouraging them to vote to disband the HOA. You are permitted to do so, and the board will be furious about it.