You can find anime and manga posters and merchandise items at various online stores such as Amazon, eBay, and Etsy. Additionally, there are specialized websites like Crunchyroll, Right Stuf Anime, and Tokyo Otaku Mode that offer a wide range of anime and manga merchandise. You can also check out conventions, anime stores, and comic book shops in your area for unique and limited edition items. **

You can find good cosplay accessories at specialty stores that cater to cosplayers, such as cosplay shops or online retailers that specialize in cosplay supplies. Additionally, you can also find unique and high-quality cosplay accessories at conventions, where vendors often sell a wide variety of items specifically for cosplayers. Another option is to look for independent artists and crafters who create custom cosplay accessories and sell them through platforms like Etsy or at local craft fairs. **

Building a cosplay costume yourself can be a rewarding and creative experience, allowing you to customize the costume to your exact specifications. However, it can also be time-consuming and require a certain level of skill and resources. On the other hand, buying a Borg costume directly can save time and effort, but may be less unique and personalized. Consider your budget, time, and skill level before making a decision. If you enjoy crafting and have the time and resources, building it yourself could be a fun project. If not, buying a costume directly may be the better option. **

It is generally recommended to order manga directly from the respective publisher whenever possible. By doing so, you are supporting the creators and publishers more directly, ensuring that they receive a larger portion of the profits. Additionally, ordering from the publisher can sometimes result in receiving exclusive bonuses or limited edition items that may not be available through third-party sellers like Amazon. However, if the manga is not easily accessible through the publisher or if you prefer the convenience and reliability of Amazon's shipping and customer service, ordering from Amazon can still be a viable option. **

It ultimately depends on personal preference and convenience. Ordering manga on Amazon may offer a wider selection and faster shipping options, but purchasing directly from the publisher can sometimes support the creators more directly. Additionally, buying from the publisher may provide exclusive bonuses or limited edition items that are not available on Amazon. Consider factors such as pricing, availability, and supporting the creators when deciding where to purchase manga. **

Some manga volumes may contain posters or other inserts as special bonuses for readers. Popular manga series like "One Piece," "Naruto," and "Attack on Titan" have been known to include posters or art cards in certain volumes. These inserts are often limited edition and can be collectible items for fans of the series. **

Some manga series include posters or other extras as special editions or limited editions. For example, the manga series "Attack on Titan" has released special editions that include posters featuring artwork from the series. Another example is the manga series "My Hero Academia," which has released special editions with posters and other bonus items. These extras are often included to entice fans to purchase the special editions and add value to the overall collection. **

Some manga series, such as "Shonen Jump" titles like "My Hero Academia" or "One Piece," often include posters or other extras in special editions or limited releases. These extras can feature artwork of the characters, illustrations by the mangaka, or promotional materials. Fans often enjoy collecting these extras as they add value to their manga collection and provide additional content related to their favorite series. **