As luck would have it, I'm currently working on a quick build (as in it will only take a couple weeks) of the Testors 1/72 Spirit of St Louis (ex-Hawk mold).
Obviously it is an airplane that needs no introduction as to it's spot in the pantheon of air pioneers, but here is the wikilink anyway for those who are interested.
http://en.wikipedia.org/wiki/Spirit_of_St._LouisAnyway, next photo up is my proof of purchase for eligibility since I did not take any photos before I started and I just joined the site recently.
The kit is very very basic. One piece wing, two fuselage halves, propeller, struts, one piece tail (which turned into a two piece tail during construction). The decal locations are embedded in the plastic, something I had never seen before but have heard occured was done on some very old kit moulds. Decent amount of flash overall but not much on the main elements (wing, tail, or fuselage).
It was bought in January as a quick build to allow me to work on my exterior finishing skills (airbrushing, sanding, etc) since I just got into the hobby seriously a few months ago... but after realizing that there was absolutely no cockpit, my OCD took over and I just had to put something together even though little of it will be seen.
I used plasticcard, a spare seat from a Heller BF108 kit, and a couple other spare pieces from the scrap bag to fashion a rough cockpit to match existing interior photos. I also used the instructions I found online for the Revell 1/48 scale kit as a basis for scratchbuilding.
Painted by hand, including the representation of the instrument panel which I tried to do with toothpicks. I realize the paint work, particularly on the black seat cushion and edges of the plywood board floor are very rough but you cannot tell once the cockpit is closed up. I also realize that the control stick is badly overscale but again it won't be seen except through the tiny window at the top (the wings obscure the seat and stick when looking in from the side).
I got much further along this weekend, getting the airframe all put together, seams filled with Mr surfacer and med viscosity CA glue, as well as doing the majority of the sanding. Currently it is waiting to have the windows go on (going to try using future as glue since they are tiny and I don't want smudges) and then it is ready for painting/finishing.