If you're all about selection it doesn't get any better than a site like frightcatalog.com for variety. They have thousands of costumes and about a hundred lion costumes for adults as it is. Give it a look and see what you think.
costumesupercenter.com is the best costume website i ever been. However, it is not a real store in public. It is only a website, but you can still order your favorite costumes.
You can certainly find what he needs online. To start with try the website at top-10-costume-sites.com. This is a comparison site which will direct you to the best costume selling sites out there.
www.shortyusa.com
The best scooters for adults can be a X-360.
There are many different stores, both retail and online, that offer printers. The best website to use is the website Amazon and the best retail store is Walmart.
I found athttp://www.buycostumes.com under "flower" there are costumes for kids and for adults. They are a good price and they look good. You can make your own costume if you want.
Well,if you ask me the best one i've seen is a Angry Birds adult costume.
http://www.costumecraze.com/ has the best costumes and sales. Just search "Sailor" and you have many kinds of costumes. They have costumes for kids, teens and adults
Definitely go on costume websites as they are your best bet t finding the costume of your choice. You can also check out online stores such as partycity.com. It will be easier to find a costume online than in-store so try looking on online shopping websites first.
If you want costume ideas then the best place for that would be online on some Halloween websites. You can also just go to a website that has Audrey Hepburn costume ideas on their as well.
The best style of costume would be up to the person wearing the costume.
Something that could be one of the best is just to be unique and be creative. Make your costume totally not recognisable that it is you too so that you seem to have changed into a totally different person. Use contacts, wigs, hair dye and many other things to change all your features about you.