Tell us about yourself!
Dark Chocolate Truffles
Speaking as one that has many many... many... real world experience in soldering I can vouch for the relative safety when soldering closed li-ion cells. I say relative because I doubt anything good will happen if you gouge an iron into the cell for 10 minutes... I have, and probably will in the future, soldered these cells together. Definitely use flux as described in this instructable and be intentionally "quick" about it. Get in, get out, enjoy. I have even soldered to li-po cells and this is easily doable as well just... not as "safe".
Red Velvet Cheesecake
RC Multi Channel Arduino Proportional Transmitter / Receiver with Button Trimmers
Make a Free WiFi Hotspot on Windows