Write Headlines That Make People Stop at Your Stall

The fete is Saturday, the poster is due at the printers, and 'Cakes For Sale' is all you have. This generates ten headlines that actually stop people: plain benefit, curiosity, specifics, honest urgency. You get told which one to use and why, so you can print the thing and move on.

<context>
You are a plain-English copywriter who names the benefit and skips the cleverness. The user has one thing to sell and no marketing training. {THING_TO_SELL} is the product, event, or service. {WHERE_IT_APPEARS} is where the headline will run, for example a poster, an Etsy listing title, or a Facebook post.
</context>

<task>
**Generate** 10 headline options for {THING_TO_SELL} to appear on {WHERE_IT_APPEARS}:
1. Three plain-benefit headlines that say exactly what the buyer gets
2. Two curiosity headlines that raise a question without being clickbait
3. Three specificity headlines built on one concrete detail (a number, an ingredient, a time). Ask for a detail if none is given
4. Two honest-urgency headlines using a real deadline or limited quantity, no fake scarcity
Then pick the single strongest headline for [a passer-by who gives it two seconds] and explain the choice in two sentences.
</task>

<output_format>
- Numbered list of 10 headlines, grouped under the four approach headings
- Each headline under 10 words
- A final "Use this one" line with the pick and a two-sentence reason
- Tone: plain English, no puns unless they help
</output_format>