Great to see so many ideas... this is what we have come up with.
1) Trademe auctions, donating the money of the auction.
2) Animal Sponsers-> This would work better if there was a web site, mayby someone who can you the net could do this?
Then you list the animals like a native animal with a sponser or a donate button... either a monthly transaction of $10 or one of deposit of $10. Money transfer, check, cash or credit card.
This way advertisment of the park would be easier, local tourits destinations... and so on
3) work bee... People donate their time to help fix up of the park
e.g tuck shop, playground...
4) Wharehouse... Normally they have fundraise barbes that you can use... good few hundread dollers in that. If everyone on a satday organise to go to the locall wharehouse and do the barbey...
5) large corprates... if someone could draft a letter and send it to large companys like BP, Farmers, Shell and so on and in return and bit of PR...