  Blue Large Amplitude Pulsators (BLAPs) are a relatively new class of blue
variable stars showing periodic variations in their light curves with periods
shorter than a few tens of mins and amplitudes of more than ten percent. We
report nine blue variable stars identified in the OmegaWhite survey conducted
using ESO's VST, which show a periodic modulation in the range 7-37 min and an
amplitude in the range 0.11-0.28 mag. We have obtained a series of followup
photometric and spectroscopic observations made primarily using SALT and
telescopes at SAAO. We find four stars which we identify as BLAPs, one of which
was previously known. One star, OW J0820--3301, appears to be a member of the
V361 Hya class of pulsating stars and is spatially close to an extended nebula.
One further star, OW J1819--2729, has characteristics similar to the sdAV
pulsators. In contrast, OW J0815--3421 is a binary star containing an sdB and a
white dwarf with an orbital period of 73.7 min, making it only one of six white
dwarf-sdB binaries with an orbital period shorter than 80 min. Finally, high
cadence photometry of four of the candidate BLAPs show features which we
compare with notch-like features seen in the much longer period Cepheid
pulsators.
