Merch/new tier ideas? (Patreon)

Hey all! So for the past few days I've been nonstop thinking about introducing a new tier that would include exclusive merch benefits, since merch is something I've been wanting to do for years (but I'd rather start small and make it tied to one tier for now) . However, I've got 2 prototypes and can't decide which one to go with:

1. $12 tier - one-time merch rewards:

be pledged continously for 4 months - OC sticker sheet

8 months - OC double-sided keychain

12 months - exclusive OC mini-print

2. $15 tier - one-time merch rewards:

be pledged continously for 3 months - OC sticker sheet

6 months - OC double-sided keychain

9 months - exclusive OC mini-print

12 months - a personalized thank-you sketch on A6 paper

global shipping would be included. another tier benefit would possibly be extra voting power (additional 2 votes per poll). those who pledge annually would receive all rewards within the same month.

if you of course have any other suggestions, please let me know! I know Patreon has a merch option, but I don't wanna pay additional fees + the merch is limited + I'd rather ship it myself :)