Best dual 18650 host?

To begin, allow me to explain the materials I have already acquired:

I decided to use a 660nm 400mw CW red laser diode (ML101U29-25), coupled with an adjustable current laser diode driver 80-500mA w/TTL from Aixiz as a driver. I have 3.7V 3400mAh 18650 Li-ion batteries (good ones from EagleTac) that have the protector circuit for power, and have an appropriate charger (links will be at the bottom).

What I am looking for is a suitable host to hold two of these batteries at the same time while also having readily available heatsinks (i.e. not have to be custom built) and fit the Aixiz module, which currently holds my laser diode. Aesthetics is a factor, however I value (heatsinking) performance over how it looks. Cheers!

Links:

Diode:
660nm 300 400mW CW Red Laser Diode ML101U29 25 10pcs Pak | eBay

Driver:
Adjustable Current Laser Diode Driver 80 500mA w TTL | eBay

Battery:
Amazon.com : EagleTac 3400mAh Protected Li-ion 18650 Rechargeable Battery (1 x 18650) : Health & Personal Care

you realize you will be buying 10 diodes, right?

Yes. I plan to make more in the future (perhaps a lab-style one)

This is one is awesome.
Cree XML-T6 - $39.00 : Zero Lasers

That one does look good. What can you say about ZeroLasers?

Haha if DTR recommends something it is good. DTR has his own laser shop so he knows his stuff BTW DTR, can i has a discount on a 9mm diode

Alright, thanks. My most sincere apologies, DTR. As you can probably see, I am new to this forum (however not to lasers). Thank you for your input, I think I will get that one.