Astro-nauty (But Nice...?)

The gifts which NASA's giftshop vends...? 

One calls 'em astro-bought.
When war ensues o'er who's to get 'em...? 

Those are astro-fought. 
Were one to search out further gifts, 

one'd call those astro-sought.
Whene'er an airborne gift one catches, 

call it astro-caught.
The range of gifts one lectures on...? 

One call those astro-taught.
The tightest gifts one brings to class...? 

The same, spelt astro-taut.
If made to make the gift oneself, 

one calls it astro-wrought.
And when a gift just won't add up,

one calls it astro-naught.