Rack for test tubes?

[Sharpchick]

I didn't know where else to put this thread. Mods, please move it if it's not in the right place.

I'm looking for some sort of rack to put the API test tubes in when I test water in my tanks. Sometimes, I can have as many as 12 tubes sitting on the kitchen counter at once.

I have limited mobility in my left hand, and frequently my hand is clumsy enough to knock one or more of them over.

Anyone ever seen a rack for the tubes other than the four little holes in the master test kit container?

 

[Mrc8858]

I don't think there is one for sale but just take a small piece of 2x4 or something and drill half way through with a bit slightly larger then a tube.

 

[Magicmarymac]

I saw some on Amazon or eBay…

 

[Sharpchick]

I found two different sets of plastic ones on Amazon - ordered the one with 24 slots.