From our FAQ:
What kind of questions can I ask here?
(Questions about)
- Tools and equipment used while playing table-top RPGs
LARPS aren't table-top RPGs, so any questions about them would be off-topic. However painting for D&D should be OK.
Shopping questions are generally frowned upon on StackExchange sites. They are likely to be closed as "too localized" as the answers change frequently and most likely vary depending where in the world someone is.
A better StackExchange flavored question would be, "How can I best identify good battle mats?" Answers that that question may contain specific product recommendations, but a great answer would also have notes:
- how big a mat to look for
- Whether to get a grid on the mat
- The pros and cons of wet-erase vs. dry-erase
- etc
That sort of advice is likely to be useful farther into the future rather than someone just telling you to buy the chessex gray 30" wet erase mat.
Other StackExchanges and Migration
Some of this may be on point at DIY as well. There is no rule that a question can only be valid on just one StackExchange site. A question will be moved only if it is clearly better on one site than another. I encourage you to ask your question on the site that you think could best answer your question. If there is a consensus that it belongs somewhere else, well, we'll all learn something :)
Please don't ask the same question on multiple sites at the same time though, that is frowned upon.