In comparison to the US parks, there is a lot less park-specific merchandise at DLP.
You will not get a full picture, but to give you some idea, you can have a look at the EU website of the
Disney Store:
https://www.shopdisney.co.uk/brands/disney-parks
You will see some of the park merchandise, and at the moment the merchandise for the Lion King / Jungle Book festival.
When you look at clothes, keep in mind that sizing is different in France from the US, and large sizes are not as easily available.
Stores you might want to try:
- Chez Marianne (Near Ratatouille)
- Main Street Motors (Main Street)
- Walt Disney Studios Store (Entrance of the Studios)
- Disney Fashion (in Disney Village)
There is no silhouette cutting.
There is a barber on Main Street, but I've never seen it open and in operation myself. Only on pictures of others. So no idea what their opening hours are.