Here are a few things you can buy. However, if you have another idea that you feel will fit, feel free to contact or mail imms and we might add it. The more options, the better!
Paying a spy in another clan.
Paying players for their services in a war.
If there is a record of a transaction of this kind being carried out, e.g. on the payer's forums, said spy will be able to buy qps at a rate of 2 qps per 1000 gold crowns*.
Upgrading city/ mobs:
Put a heron on a cityhead in your city for 1 month. (100,000)
Extra clan room (only for those clans with few clanrooms, clanroom will be taken from existing layout if zone is full). (50,000)
A special chest for herbs/ potions for 1 year. (30,000)
Increased potion loads on your local herbalist or local (mini)smobs for 1 year. (20,000)
Increase pick requirement on a gate (depends on city, might not be reasonable in some cities) for 1 year. (50,000)
Increase guard mob level for 1 year. (200,000)
Improve weapons on your city mobs for 1 year. (100,000)
Improve equipment on your city mobs for 1 year. (100,000)
Additional patrol in/around city for 1 year. (500,000)
Issueable equipment for qp. (80,000)
Reduced qp cost for already issuable eq. (60,000)
Purchasable no-locs. (50,000)
Free captain's hat load in clan rooms. (20,000)
Sharing with others:
Pay so everyone in the clan gets a sum of qps. (200,000 for 50 qps for all members, one clan for those clans who share a treasurer)
Pay so clanmates get 1 month of master flag.(100,000 all rank 5+ get master flag, one clan for those clans who share a treasurer)
New patrol in wilderness for 1 year. (500,000)
Upgrade existing patrol's level for 1 year. (200,000)
Upgrade existing patrol's weapons for 1 year. (100,000)
Upgrade existing patrol's equipment for 1 year. (100,000)