In Shodokan Aikido there is a basic kata that was developed when Tomiki Sensei was imprisoned by the Russians toward the end of WWII. I think he was in solitary confinement( small cell ) for two years when he worked out the Kata.
Although you might not be in Shodokan Aikido, the exercises cover basics that are in all styles.
Mickey Gellum was working on some videos demonstrating Tegatana
Dousa. I don't know if he finished.
Also some aiki taiso.