  A small number of superconductors are believed to exhibit intrinsic spin
triplet pairing, and they are often discussed in terms of a simple, $^3$He-like
picture where ferromagnetic spin fluctuations provide the "glue". However, in
some cases in which reliable inelastic neutron scattering measurements are
available, spin excitations are found to be peaked at finite momentum $\bf q$
rather than ${\bf q}=0$. Here we investigate some simple models that exhibit
triplet pairing arising from antiferromagnetic spin fluctuations. We show that
a strong peak at larger ${\bf q}$ in the magnetic susceptibility can drive such
states and can give rise to pairing states with nodes in the $k_z$ plane even
in the presence of a pure 2D Fermi surface. In these situations, dominant pair
scattering processes occur between Fermi surface segments with like signs of
the superconducting order parameter, yet they are consistent with an overall
odd parity state. We examine the applicability of these scenarios to putative
triplet superconductors UTe$_2$ by calculations based on three dimensional
Fermi surfaces.
