Bare in mind that I do not pay for electricity or bandwidth. All rigs mentioned below were inherited or already owned. I did have spend some money on a PSU and supplies for getting everything up and running, a total of around $100. Well worth it just for the hobby of doing it.

I recently got into mining and I was very interested in Monero. I'm currently mining monero with every CPU, GPU I already had access too. Averaging $2-3 a day at current rates and having fun while doing so.

My main issue right now is what to do with these 3x ASIC butterfly lab 50GH/s bricks I inherited from my friend. He said he would use them if he had time but in an apartment with babies they make too much noise. Please spare me the jokes about how they are better served as space heaters lol. I totally see why, but in all honesty given my situation, there is hardly an initial investment to have these doing work other than the time setting them up.

What would be my best option on using 3x ASIC miners with a total of 150 GH/s other than causing me a heat stroke in my basement? I understand they only work with SHA256 coins, so answers could involve a certain coin that might make profit in the long run. Ive put them to use for PeerCoin at the moment, but with that price so low and the hardware only getting 0.1 ppc a week, im not so sure. Somebody from peercoin.ecoining.com's chat mentioned I should just solo mine and pray for lottery in hopes to get an entire block. I'm open to this as well since I wont pay to keep them running. But if solo mining, which sha256 coin would yield the best reward:difficulty ratio? I could also just pray extra hard and solo mine BTC.

Solo/lottery vs. pool vs. sha256 multipool?
bitcoin vs. continue peercoin vs. an easier, upcoming altcoin?
Mod/Reprogram asic miners for other altcoin mining? (I have necessary skills if this is even possible)

Give it to me straight guys. Appreciate your responses. Good luck out there