I recently purchased a 2000 Honda Insight from minor4326. He was nice enough to drive it up to Lansing from Detroit for me to purchase it. Now onto my armrest mod 
I used to own a '95 Geo Metro and retrofit a 1st gen Dodge Neon center console to gain an armrest, so I was already familiar with the idea. I think it turned out pretty well, but I'll let you guys be the judge.
Here is a side by side pic of the Civic & Insight center consoles. I picked it up at a local junk yard for $6. It was from a 2000. As you can see, the Civic console is longer, wider and comes with a coin dish.
And this is how it ended up looking after trimming the rear to fit over the two metal brackets. The two plastic plugs need to be removed from the brackets.
Ignore the cuts up the two corners. It should be left in tact. All you really need to do is trim the center section, round the two corners, cut two vertical slot and glue the blank plate in for more rigidity (optional).
The front end needs to be rounded just a bit. I cut off maybe a 1/4 too much, but it still turned out fine. It's a very tight squeeze to get the front console to fit with the Civic console, but once everything is flat, there is a little wiggle room. You can still slide the seats back and forth and reach the seat levers, but they do rub.
Here it is installed! As you can see, I kept the front console of the Insight around the shifter and "molded" the Civic console around it.
Hope you guys enjoy! This gives you a little more "storage" than the '92-'95 Civic armrest with the tray under the e-brake.
I used to own a '95 Geo Metro and retrofit a 1st gen Dodge Neon center console to gain an armrest, so I was already familiar with the idea. I think it turned out pretty well, but I'll let you guys be the judge.
Here is a side by side pic of the Civic & Insight center consoles. I picked it up at a local junk yard for $6. It was from a 2000. As you can see, the Civic console is longer, wider and comes with a coin dish.


And this is how it ended up looking after trimming the rear to fit over the two metal brackets. The two plastic plugs need to be removed from the brackets.
Ignore the cuts up the two corners. It should be left in tact. All you really need to do is trim the center section, round the two corners, cut two vertical slot and glue the blank plate in for more rigidity (optional).

The front end needs to be rounded just a bit. I cut off maybe a 1/4 too much, but it still turned out fine. It's a very tight squeeze to get the front console to fit with the Civic console, but once everything is flat, there is a little wiggle room. You can still slide the seats back and forth and reach the seat levers, but they do rub.
Here it is installed! As you can see, I kept the front console of the Insight around the shifter and "molded" the Civic console around it.

Hope you guys enjoy! This gives you a little more "storage" than the '92-'95 Civic armrest with the tray under the e-brake.