It's a fairly compact job, even with parts laid out meticulously, so there's plenty of room for Madoka as long as she doesn't touch anything. Ple Two might have to rescind the chocolate in that case.

...she won't, but she could.

Madoka, smiling and blushing, is reward enough. Even if she's awkward about expressing her affections, she can achieve this much. "I don't think I want it on my hands while I do this. If you... could save me the other half?"