Quills and parchment
Hermione was in heaven. She had been given extra money for her trip to Diagon Alley from her parents, and she decided that she'd stop at the Quill shop. When she entered she smelled all the new rolls of parchment and never before used quills. She was amazed by how many different types of quills they had. For years all she had to do her essays and homework with was a second-hand quill that her parents bought for her since they didn't know how much everything else was going to cost.
Hermione gazed through the quills. Each one was unique, and each one was beautiful. She was glad that Ron and Harry weren't here because she wouldn't be able to spend as much time browsing the quills, and she spent a long time doing so, Hermione spent almost half an hour just looking at them before she realized that she had to pick one to buy. That took another half an hour because she was constantly debating, and weighing the pros and cons she had come up for them. When Hermione finally decided which one would be the best to use, it was a silver and grey feather with a long tip.
Hermione exited the store with a smile on her face; she was in complete bliss with receiving a new quill.