Larkhall Athletic and Bitton both booked their places in the last 32 of the FA Vase with victories last Saturday.
And the Toolstation Premier Division sides' reward was a pair of home ties in Monday's fourth-round draw, with Larks entertaining East Sussex outfit Peacehaven & Telscombe at Plain Ham on January 19, while Bitton take on the winners of this weekend's meeting between Northern clubs Shildon and Parkgate.
Simon Gilbert scored with the last kick of the game to earn Larks a nail-biting 3-2 home victory over Kidlington.
Man of the match Luke Clarke converted Gilbert's cross to put the hosts into the lead before Chris Snody made a couple of decisive interventions to preserve it before half-time.
Clarke then hit a post before Kidlington's Ryan Curtain equalised from the penalty spot after Gary Thorne was adjudged to have elbowed an opponent inside the area.
Larks began to lose their shape but re-took the lead when Nat Aukland tapped home after the visiting keeper stopped Clarke's initial attempt.
Curtain levelled for a second time almost immediately but, with extra-time looming, Gilbert held his nerve to convert a penalty awarded for deliberate handball.
Bitton's long trip to Cornwall to take on St Blazey proved worthwhile as they claimed a 3-0 win and £1,500 in prize money.
Jason Llama's close-range finish and a Mark Salter penalty put Bitton 2-0 up inside half-an-hour. Salter added a third after St Blazey's Dan Bennett was dismissed.
Bitton are due to visit Oldland Abbotonians in the Gloucestershire FA Challenge Trophy second round on Wedneesday night and return to league action with a trip to Premier Division title-chasers Cadbury Heath on Saturday.
Larkhall, meanwhile, make the trip to fourth-placed Hallen.
