If you enjoy sledding (on a sledge, "Luge" in French) then I have the best event that you can find in Switzerland:
In the small mountain village of Les Diablerets, they have a 7.2 km long piste for sledge and on the 1 February sledding can be combined with fondue. But as it is an evening event we will need to book hotel rooms. I have found some reasonable prized rooms (5 double rooms) but as it is the high season I need to book and PAY immediately.
Therefore, I need you to tell me if you are interested in participating in this. And I will need you to pay me the amount for the hotel also asap after confirmation, but you will get an email about this later.

This is the schedule:
Friday 31 January: We meet at Cornavin at 19:25 on platform 4, next to the ticket machines. Train departs at 19:33. Check in at the hotel and heading out for a drink or two..
Saturday 1 Feb: Meet at the breakfast room at 09:00 ready to leave. All mountain activities possible: alpine, cross country, snowshoe, and more...
Meet at the hotel bar at 17:50 for a drink before heading up to the luge&fondue...
Sunday: Meet at breakfast room 09:30.
Train departs on 16:12,17:06, 17;48 or later. It takes about 2hrs23.

With the fondue/luge event (55 chf), hotel (155 chf per person) and two day skipass (95 chf - but optional) it is not a super cheap weekend, but, trust me, it is worth the money. You don't need skipass to participate in the luge&fondue activity.

Send me an email if you are interested. Your place is confirmed when I have received payment.