A more effective Bag of tricks

[Critical Assessment]

I don't know if this is the correct forum, but I've been using a tan bag of tricks on my character for a while now and was looking for an upgrade (We are currently level 8 on the cusp of 9). I couldn't find anything official, so I was wondering if there are any good 3rd party/homebrew versions. I am also open to suggestions if there's nothing printed as my dm is willing to let me make one as long as it is within reason. Any help would be greatly appreciated.

[Azothath]

there are several places to look.
Bag of Tricks at AoN offers 4 versions that are RAW.
a-b magic items on d20PFSRD doesn't show anything extra.
You can search in this forum for Homebrew items.

the item runs on Summon Nature's Ally Druid spells using a Summoner's duration.
Roughly -
> SNA 4 (Rust) -> Spl Lvl=4@CL=10 {40} & 3@10 {30} for an avg of 35 costs 8500gp or 10/week or 2/day at 24.3/charge per week (cheeep!).
> SNA 5 (Tan) -> Spl Lvl=5@CL=10 {50} & {40}-> {45} costs 16000gp or 10/week or 2/day at 35.6/charge per week(darn cheap).
that would imply (1.465^n rising cost per SplLvl*CL)
> SNA 6 (Hunter Green) at avg{55} costs 52.15/chg or $28700.
> SNA 7 (Goldenrod) at avg{65} costs 76.4/chg or $49700.

[the David]

You can go to the Archives of Nethys and use the search engine. A term like Summon would do the trick.