Do you feel as though your PC is too light? Does it vibrate too much?
Well, the Japanese company "riforma" has a solution for you. Put a rock in it.
But not just any rock. The "Hard Style Rock Anchor" will set you back 9800 yen.

Price: 9800 yen
Hard Style Rock Anchor
Part Number JSB-Anchor             JAN 4560160371045

Made of stay aluminum.
This hard-style rock is fixed in an aluminum stay. The attached stay portion of the device is made of 1.5mm thick aluminum.

This serves the purpose of strengthening the case, and protecting it from vibration.
Use: Please use this for reinforcement for cases with thin sides and weak frames. This also acts as a countermeasure for those who are worried about frame vibration. Use this to prevent against vibration caused by light weight. This is not o­nly for "SilentMaster" either - any case can use this.

W 145.5mm x H38.5mm x D160mm, weight 2,000g.

Accessory
Attachment use, 8 BlueScrew
Seller: riforma
Manufacturer: JapanValue

Inspired by:
http://www.riforma.jp/japanese/Prpduct/riforma/JSB-Anchor.htm