The obvious thing would be to use them for upgrades/redemptions.
The advice re combining them is sound - for 20€ they'll transfer the points from one account to another. Note that the owner of the donating account must call to initiate the transfer.
Other meaningful usage of the points is very rare - they don't seem to carry Rimowa anymore on the online shop - one could use cash+points to get one.
The only hotel redemption outside FI seems to be this
"Your Finnair Plus points can be used for award stays at Scandic Hotels in Finland, Scandinavia, the Baltic countries, Belgium, Germany, Poland, and the Netherlands. A Finnair Plus award voucher entitles you to spend one night at weekends (Fri-Sun) in a double room at Scandic hotels. On weekdays, you need two vouchers. "
Yeah, right, 60.000 points for a 100€ hotel room
