Turn your colony into a the galaxies finest tourist attraction.
New Pawn: Tourist. Brings silver to spend. Tourist leave if mood is low or have spent all there silver.
New Rooms suggestions:
Hotel Reception- requires reception desk-skill required social.
Guess Room- requires tourist bed, price depends on impressiveness of room.
Casino- requires casino item i.e slot machines, blackjack table.
Restaurant - requires reception desk + table. Sell meals for a premium.
Anyway this is just a basic idea that doesn't seem too over top. Obliviously needs some fleshing out.
you can pay traders to come visit your colony, sell them meals and use hospitality mod.