Just put some cash there and don't do any trading.dukascopy.bank sounds good. However, I see now, fees from assets 1.5% per year, is that serious? Then of course not acceptable.
Maintenance fee 1.5% per year (The maintenance fee (cumulative swap points) is charged monthly for the assets held in the previous month. The fee is calculated from the sum of the end-of-day balances of the investments' * (maintenance fee in % / 360).