It will be hard to blow out the silver market on paper as they can just hammer in unlimited paper shorts to hold the price down.
However one place to start is the SLV ETF as they have to (in theory) order the physical silver for the fund - but this can be rigged on paper.
The place that will blow out the silver market is the physical, but it's no good buying a few ounces at a massive spread.
The way to buy physical silver is with futures contracts which are legally for delivery -
HOWEVER - most retail brokers - even IB which is semi professional will not allow you to take delivery - rigged at all ?
So you need a pro futures Broker - Dorman, Advantage Futures, Wedbush, GAIN, FC STONE, there quite a number of them that the pro hedge funds use. You buy a contract on the front month and hold it for delivery.
You can buy on margin to start with but you will need 5000 ounces for delivery X the price of the silver +/- the P/L on the futures contract. So at $30/oz it's $150k cash to take delivery.
This is the only real way to blow out the silver market. They don't have stocks in the COMEX warehouse, so taking delivery will blow the market apart, but it's not a game for $5000 accounts on Robinhood.
We could band together and buy physical and then distribute in small blocks to anyone who wants to buy a smaller amount. That would need some system, escrow, website etc. to gather up the orders. (Not for profit for rebellion :-)
buy PSLV and have Sprott do the futures delivery. There actually IS a way for SLV to cheat the market. If you read their prospectus, they only have to have the "bulk" of their assets in Silver and the auditing is opaque as well. Research PSLV, I think you'll find it's a decent vehicle for pressuring the Comex via the futures market, albeit a little more roundabout method. I've also heard that you can buy directly from Majestic Silver although I've never done it.