If your enclosure has screws, there are typically two that hold the case together and — just like the hard drive cage in your computer — four screws to mount the drive. (howtogeek.com)
A smaller one with removable hard drive cage is fine, i just prefer a smaller form factor to save space. (theverge.com)
There's also a miniature putting green and driving cage for golf enthusiasts, ping pong tables, bean bag toss and giant foosball. (businessinsider.com)