Mirgros bank have a pre paid MasterCard which I have just got in the mail with a L Bewilligung. Costs 20CHF a year and 1% of transactions and you have to put money on it to use it but it's a hell of a lot better than nothing and way cheaper than sending money back home to top up my NZ card. I have tried with lots of banks etc. too, even asking for one with tiny limits with no luck.
I found out about this one on their website and when I went in to the bank to ask for one they had no idea what I was talking about but it does exist so be persistent and make them look it up if you have to. You can get in CHF or in Euros (or both), whatever you use more.