Put 100,000 in a bank high interest paying bank account/product. Say 1%.
Use the 1000$ as a stop loss and trade(only if you know how) stocks. Or buy stocks and write calls.
Generate decent returns which will turn your money to double in a decent time frame.
This is what I am thinking too that if you wanted to double that $100,000 let the bank work for it. And the banks are going to be happy if you are going to invest that to them.
And that is going to be in time deposit and you are not able to withdraw that for the contract you have agreed together with the bank.
But of course there are still some taxes to cover up for that.
You can double that amount in bank safely but you need to wait a longer period of time to make that happen and by the time you double your money the value of that is lesser due to inflation, still not a good plan, better invest it somewhere else but not bank.