you could have mini-game like fundraisers for PWPs(bake sales, landscaping challenges,etc) to help pay for a bigger chunk of the costs instead of just using all of your own bells/waiting for villagers to slowly donate.
That's such a good idea, I love that, especially the fundraisers!
I was thinking the other day how much I would like it if campers could leave their tent, talk to your villagers, go shopping, roam around your town for the day etc.
I agree, I would also love more mini-games - I love hide and seek!