Thanks to everyone who participated! Your fun and clever names made it difficult to choose, but @Chasetheriver has made his decision, and our new 500k tournament will be named …
Half Mil Thrill!
Because @Sassy_Sarah came up with a similar name first, and @BBlanco formatted it at 15 characters, we’re going to go ahead and give BOTH players the full entry fee for this upcoming tournament. Both of you should notice an additional 500,000 chips in your bank. 
Thanks to all of you again for your creativity. Don’t forget that we still have another contest open for more chances to win!