  We present an analysis of DES17X1boj and DES16E2bjy, two peculiar transients
discovered by the Dark Energy Survey (DES). They exhibit nearly identical
double-peaked light curves which reach very different maximum luminosities
(M$_\mathrm{r}$ = -15.4 and M$_\mathrm{r}$ = -17.9, respectively). The light
curve evolution of these events is highly atypical and has not been reported
before. The transients are found in different host environments: DES17X1boj was
found near the nucleus of a spiral galaxy, while DES16E2bjy is located in the
outskirts of a passive red galaxy. Early photometric data is well fitted with a
blackbody and the resulting moderate photospheric expansion velocities (1800
km/s for DES17X1boj and 4800 km/s for DES16E2bjy) suggest an explosive or
eruptive origin. Additionally, a feature identified as high-velocity CaII
absorption (v $\approx$ 9400km/s) in the near-peak spectrum of DES17X1boj may
imply that it is a supernova. While similar light curve evolution suggests a
similar physical origin for these two transients, we are not able to identify
or characterise the progenitors.
