That's awesome. We have a pallet that we will try and do something with and I'm browsing craigslist for free stuff. Hopefully a nice doghouse.
My neighborhood is always having yard sales and we picked up a used but very large doghouse for $10. We barely got it into the Jeep it was so large - the thing would've cost us way over $100 new! Our friends have contributed free a couple of their old large doghouses. We got a 4th nice doghouse from a local thrift store for a 1/3 of its new cost. There are deals and freebies out there - make a game out of having your kids look for yard sales as you're driving. I picked up someone's free throw-away lumber pieces on trash day. A furniture mfg friend of ours brought us some lumber scraps from his workplace. For 5 years I haven't been picky about yard aesthetics regarding my backyard hens because I wanted them to be safe first and look "pretty" last. Now that we've leveled the yard and put up a new fence we can finally think about yard aesthetics for the first time but I'll still be bringing out those 4 recycled doghouses again to place around the yard because the hens love to hide/snooze in them.