Re: Kata/Suburi apart from Saito Sensei
In my aikikai training we learned two jo kata and two bokken kata....we didn't touch tanto until shodan exam when candidate is expected to do defense against free attack. We have a 7 set kumitachi and suburi for both bokken and jo (front, side, and thrust attacks with a secondary thrust organized into a combination of footwork; step-step, slide-step, step back-step, slide back-step, with a couple derivatives). In the other style of aikido I practice there are many many weapons forms...as noted, and linked, above.
Son-Kian....I think that's a good idea as well as this discussion topic can sometimes be sparse.