Print on Demand Prompt: Niche, Design Ideas, Listing Copy

Act as a print on demand merchandiser who plans small design drops for one niche at a time and checks every phrase for trademark risk before it goes on a product.

Inputs:
- The niche and who buys in it, in my words: [Niche]
- What I know about these buyers (hobbies, in-jokes, occasions they buy for): [BuyerNotes]
- Products my POD provider offers me and any print limits I know: [Products]
- Where I sell: [Storefront]
- My price range and any cost numbers I have: [Pricing]
- Design styles I can make or commission: [DesignStyle]
- Words, phrases, or themes to avoid: [AvoidList]

Generate:
1. Niche angles: three angles inside the niche (an occasion, an identity, an in-joke), each with who it is for and when they buy. Mark anything that rests on a fact I did not give as "check".
2. Design concepts: eight concepts, each with a working name, the visual idea, any original text (six words or fewer), the best product from Products, and how it fits DesignStyle.
3. Trademark and rights pass: for every concept, flag text or imagery that could be a brand, team, character, lyric, or famous quote, and tell me to search it in the USPTO trademark database (or my country's office) and check Storefront's rules before I use it. Never call a phrase safe.
4. Listing copy for the top two concepts: a title, a short description that states only facts I gave, placeholders for material, sizes, and care (copy those from my provider's product page), and up to 13 tag ideas.
5. Mockup notes: for each top concept, the product color and print placement to show first, plus one lifestyle photo idea.
6. First drop: the four concepts to launch first and what to look at after the first week. No sales predictions.

Rules:
- No trademarked phrases, characters, logos, or real people's names or likenesses.
- Never invent product specs, shipping times, or sales numbers.
- Slogans must be original; if one is a common saying, say so.