For some of these items, yes! The $50 tier (two copies of the book in the same package) and the $15 add-on rule to get all the keychains (listed on every tier $40 and up) might be what you're looking for.
If there's something else you want, please add the following dollar amount to your pledge and REMEMBER what you chose, since we'll be asking you about it in the post-Kickstarter survey (that's the only way we'll know to send it to you!):
-An extra copy of the paperback in your package: $30 (shipping to USA) or $40 (shipping to non-USA)
-The 3-print set added to your package: $25 (shipping to USA) or $30 (shipping to non-USA)
-The Sparkler Monthly membership: you can always buy that - or single issues, monthly billing, etc. - immediately on our site at http://sparklermonthly.com/membership-levels/
-The dakimakura body pillow case: $65 (shipping to USA) or $70 (shipping to non-USA)
-NEW The two 11" x 17" prints of the body pillow case art: $40 (shipping to USA) or $50 (shipping to non-USA)
The other items (signed bookplate or being drawn into the background of Vol 2) can't be purchased separately, sorry.