Some ideas for doing this would be:

1. Paste the hoplink to your own website.
2. Send the referral link to a list of email subscribers.
3. Post the referral link at your blog.
4. Use online advertising to promote the product.
5. Set up an ad in Google Adwords.

Google Adwords in a quick way of promoting your ad to a lot of people over a short period of time.  I do want so say that you need to be very careful about using this system.  It has generated a lot of sales to people that understand how to use it.  And it has cost some beginners a lot of money because they didn't  understand what they were doing.  If you wish to try the Google Adwords approach, I would suggest that you consider a great e-book from Perry Marshal called 'The Definitive Guide To Google Adwords'.  You can find it here.  perrymarshall.com/google/

3. Forums and bulletin boards.
You could add a forum or bulletin board to your website where your visitors can interact with each other. There are a lot of free services available out there that you can use to either remotely host a forum for you, or even software you can install on your website's server. To find some of these, just head over to your favorite search engine and you will definitely find plenty to choose from.
And while you are visiting the search engine, why not run a search for any bulletin boards and forums that are already out there for your chosen topic? You could visit those and interact with the visitors there and since many allow you to post a signature or a profile, you could add a little line about your own site with a link (just check the rules of the forum first so you don't violate any of them).

4. Start a blog.
Blogs are very popular and search engines love them because they provide constantly new and fresh content. Your blog would be a great place to talk about what you are up to that day. So if you spent some time today buying new parts for your plane you could write about where you found them, how much they cost you, why you chose those parts, anything really goes.
The really great part about this is that you can point links from your blog back to your website, so when the search engine stops by to grab and index your latest content, it will also stop by your website and you will start seeing very targeted traffic heading your way.