What helped me finally dive into making a few MOCs was the monthly building contests on this site, actually. They gave me a topic and created a set time for building so there was some pressure and I couldn't just put it off. Also, the expectation isn't that you will create some 1,000+ piece design so it is definitely manageable.
This might be fairly unorthodox, and I know I am relatively new to the site so I really don't have as much sway as other members might, but is there any chance the April contest can become the April/May contest? Although I ask this semi-selfishly knowing that I won't be able to finish something by the end of the month, I don't know if I would be able to do something by the end of May either, so this question isn't about me so much as it is about our host, @rdflego, who put a lot of effort into the creation of this month's contest.
There is one week left, and we only have one (albeit a good one) entry from @Bumblepants (who, right now, might be irritated by me even suggesting this). Are there others who have something in the works that will be complete by next weekend?