There are many. I went back through some of Krell's sales from 2015 and checked April, May, June and July. I figured it was best to use one seller and one continuous four month period. Only 19 live websites out of 59 sales. 32% are live which is even much lower then my skeptic brain would have thought. Whether all these sales are actually real or not is another question altogether. I find it interesting that when the BB hype was at it's peak that Krell would list his sales to hook more sellers. He doesn't list them anymore so I guess BB has enough sellers now.
April sales
B A M B O R A website
B O U N C E L O G I C lander
S T A R T C O I N error page
S T A C K K brandbucket page
D A S H R godaddy page
S I M P L E D E F E N S E hostgator page
U P F U E L website
H O M E C R A T E website
Z E N S T A C K godaddy page
N I T R O G E N C L O U D godaddy page
I D E N T I T Y L A B S website
F U N D I F U L forwarded
May sales
C y b e r s p r o u t website
S i m p l e R o b o t forwarded
S w i t c h P u l s e brandbucket page
W o r k P i l e website
Z e n o z a landing page
R e c r u i t P a d brandbucket page
F u t u re W h e e l s website
R e a d y S t r e a m landing page
T e c h S i l o godaddy page
N e t w o r k S t a c k landing page
H e l l o P a y m e n t forwarded
P a y M y T a b website
P r o v i d r website
C a r v e z a landing page
Z e n S t a t e brandbucket page
H e l p N i n j a website
S i l e n t B o o s t website
June sales
S U P P O R T S T A C K website
M I C R O F U N D E R godaddy page
P L U N C website
T A L K S I G N A L website
B L O C K A B L E listed for sale for $19,895
R E A D Y S E L E C T landing page
N E X T B L O O M brandbucket page
P R O N T O L Y website
B U R S T D R I V E
G L A M S T A C K dead shopify page
C H I C C R O W D website
L E G A L R O O M landing page
L A U N C H G R I D wp dead page
C O O K I N G L Y dead page
F L O W P A Y M E N T godaddy page
S W Y P E R landing page
S E N D C O godaddy page
T A P B O T dead page
July sales
B U F F E R Z O N E website
S T A C K P A T H website
S A F E C L O A K subscribe page
B O O K T I V A website
Z E N P U L S E we will be live in 508 days LOL
H O L S T R forwarded
C A R S Y dead page
T R A C K E R L Y forwarded to tracker.ly
D A N C E F U L dead page
U B E R S E C U R I T Y brandbucket page
H Y Y P E 410 brandbucket page
S E R V E S U P dead page