When adapting to agile philosophy some managers get carried away and want to spend some money on improving the team productivity. Especially if you have an external consultant coaching the team, the manager tends to ask the coach what they should buy. Often the budget is presented as "$X per developer". As a coach it is always nice to hear that the management recognizes the benefits from the new methodology and wants to improve it even more but it is only once in a while the question is correctly asked. First of all the question should be addressed to the team and not to the coach. A very important part of the agile process is trusting the team to improve its own process. Second the budget should be for the team and not for each member of the team (it is a big psychological difference how you present the budget).
So now that the team have their fate in their own hands it is not uncommon to have them turn to the coach for inspiration. Nothing wrong with that. So here is some inspiration: