I'm not a fan of the LCP either, I can't deal with the trigger. What I have been carrying is a Diamond Back .380 in a uncle mikes pocket holster. If you want to shoot it let me know and we can meet up for a .380 shoot.
What I think is an even better t-shirt and short carry option is the CCC shaggy AIWB holster. I have been using one for a couple weeks now to carry a G19 and I have been very happy with the set-up. Philip