I first heard about TLBC from Alterations Needed - see her posts here and here. They specialize in A and B cup push-up bras in band sizes ranging from 28 to 36. TLBC recently contacted me and kindly offered to send a sample, as well as sponsor a giveaway for readers (stay tuned!).
Here is a demonstration of how their strategic push-up bra compares to one I got years ago from a department store. First up, TLBC Angela T-shirt bra, $52:
Right: TLBC "Angela" in 32A (sold here)H&M dress, sz 2