What attachments should i put on this bong?

[arsenal2687]

i recently bought this from a friend of mine for my vaporizer to attach to. what can i put on this to make it that much better. also can i put a down stem where the bowl sits?

 

[treeman]

Seems fine, besides needing a good cleaning. Putting a downstem where the bowl is a bit needless as when your hitting it there won't be any water in that first part (where the bowl goes) as the water will get pulled into the main can. You could put an ashcatcher though I don't think its that called for when dealing with vapor, depends on whether you find your throat gets irritated or not.