Headphone stands for school?

[MarcLister]

I'm the ICT guy for a local school. We have a box or two of headphone/microphone combos for the kids to use. There's a bit of a rush when the kids go to get a set to use on the computers. We'd like to find a way of attaching a hook to the side of each computer (RM all-in-one jobbies) or perhaps a headphone stand for each computer that we can screw into the desk surface so that each computer has a headphone/mic combo set on a stand positioned adjacently. The headphones would be plugged into the two necessary sockets on the front of the computer so that the kids just come along, sit at a computer and the headphones are there, ready and plugged in in front of them.

Any suggestions of how we do this? We were thinking of adhesive hooks but I can't find anything decent that is big enough to hold the headphones so it might be that we have to get stands next to each computer screwed into the desk.

http://www.amazon.co.uk/High-Comfort...2256105&sr=8-1

These are very similar to the headphones we've got. So they are fairly heavy and need a durable way of being kept next to each computer.

I've looked on Amazon, Dabs, Scan etc but I just can't think of any shops/sites that would sell what we need at a decent price. We'd need about 30 or so.