Happy New year.
I'm very sure the first thing I made was really simple and would have been a 2hp Pluck going through some Reverb and I was sending it Triggers from a Roland Boutique Sh-01, that made me happy though and look at the rack mess I'm in 2 years or so later :)
Enjoy your spare HP, don't rush to fill every last space, this is not like filling sticker books. Resist the urge to 'complete' your rack, its never complete so just relax.