Here are a few undergarments I've made for my historic costumes
Laughing Moon Bustles and Hoops pattern:
 Truly Victorian #208, plain with ruffles for a petticoat
 Laughing Moon Bustles and Hoops pattern:
 1830's corded petticoat, no pattern -just help from internet friends
Regency bodiced petticoat, altered the Butterick 6630 
Half stays and chemise from the Simplicity 4052 Regency undergarments pattern: 
Butterick B4254 This was a first try, so be kind!!  I KNOW it's laced wrong. (Panniers commissioned via Ebay, but it's been so long I forget who made them). 
Late 18th c. rump pad, Wingeo #216 (worn with 18th. polonaise) 
 TV 170, view 1 bustle petticoat  Ugh, what an awful photo.  Sorry!
I've also made an early steel bustle with attached petticoat (TV 108) and a late steel bustle with attached petticoat (TV 101), but I don't have photos of them. 
You'll also note a sad lack of corsets.  I'm currently taking a pattern drafting class and am making my first corset now.