The Nokia 5110 LCD was delivered with pins installed, so I had to modify the original case (http://www.thingiverse.com/thing:188205).  It's easier just to mod the case rather than apply heat to the very thin PCB and remove the pins and solder.  This new height will allow you to use a plug on the pins and slide the original back cover back on (maybe even some other electronics, like an LED) original slim profile case: http://www.thingiverse.com/thing:188205