There's a Farm and Ranch Heritage Museum in Las Cruces. The boys and I went one day while Martel was at work. Seriously, we did a lot while he was at work, but since this was a business trip for him, we expected it.
The Discovery Gardens at the Museum were full of all sorts of garden toys. The boys had tons of fun playing there.
On Fridays, Saturdays and Sundays there's a Blacksmith demonstration. We got to see the Blacksmith make a nail, which he gave to Leo. Leo thought it was the coolest thing ever.