I decided I wanted to see what i could do with some of those bits. After digging around a bit I found some Ork arms and got my clippers and exacto knife. After a little trial and error, this is what I came up with.
For my first try I took a chain saw choppa arm and a couple of regular choppa arms.
I trimmed off the ork arm and smoothed the surfaces that would be glued.
Next up I took another chain saw choppa arm and 2 ax arms.
Same process of trimming and smoothing.
These are pretty clunky, but they look alright for a less advanced race like Orks. When I put together a few more ships and add a little paint and and I will have the start of another fleet using bits that I've got laying around.
What do you think? Any ideas for making larger ships to match these frigates? Maybe use some parts from a kill kan or trukk?