There really isn't a way to donate direct funds.  If you would like to help I would suggest donating subscriptions to others. 

you can buy extra subscriptions into the future....or you could look around for some promising young artists who may not be subscribed...and choose one/several to buy for....

you could buy some masterskins....a percentage goes to WC of the non Stardock ones....or buy SD ones...

sometimes people need help with OD renewals....

if you wanted to make it a bit of fun...you could have a little mini competition....best wall...or 25 words or less...why you want a subscription etc.

lots of ways....

just a suggestion....

or I'm sure someone will be along to tell you how you can do it directly....

Edit...too slow..

lol ok I will give it some thought... a skin competition would be cool too.

thanks for the ideas!

So if I want to donate £10k I've got to purchase 670 years worth of subscriptions?

So are you planning to burden the Earth for 670 years?

Hope u do but.......

....give 100 young energetic years of them to me too, please!

lol nice....