I cannot do a Robusto (4.5X50 about) sized cigar in 30 minutes. That is a 45 - 75 minute smoke for me.
I have found the RP Juniors (Sun Grown & Vintage Lines) to be excellent short smokes @ $11.00 for 5 cigars (4X38) that isn't bad.
However, RP also does them in bulk - not the SG or the Vintage line, but that size. Famous has them in natural and maduro wrappers for $50 for 40 sticks. Now that is a smoke you could finish, and if not, there'd be no reason not to toss the rest.
Here's the link to the natural wrapped version.
http://www.famous-smoke.com/cigars/s...cfm/inum/24295