I suggest an addition of a Market place for Slap survival server that will act as a secondary shop:
The Market place will have items sold in various prices that will be updated per month(or per week if Staff is up to it/if it'll turn out to be useful).
The Market offers discounted items from the shop, and about 2-3 items unavailable to get in the shop, perhaps even specific staff heads ( in a high price) - selling premium heads could let players check here and there for the heads that are left to complete their collection!
Also the market will have a book with a certain enchantment as a special item for sale, excluding things such as fortune, silk touch thorns and other op enchantments.
The Market will also have a sell section, about 2-5 items per month(or week) that you can sell for an increased price at the market! make sure to wait for the pumpkin season!
Any thoughts about this?