These are some of my hammy’s favorites!

she chews the hell out of this thing, i’ve already replaced it once and i’ve only had her about a month: https://www.amazon.com/Ware-Manufacturing-Willow-Branch-Animals/dp/B003XV5E9U?pd_rd_w=ilDXe&pf_rd_p=654426bb-d9e0-46ff-b0bb-c0819dce172b&pf_rd_r=RNEYHWKQFXY2V68R9XQH&pd_rd_r=e316a4ac-59b2-404e-ade3-32d55a9344e9&pd_rd_wg=7d5gZ&pd_rd_i=B003XV5E9U&psc=1&ref_=pd_bap_m_rp_1_sc

these are both chewable and climbable, and they’re pretty cheap: https://www.amazon.com/Niteangel-Wooden-Ladder-Hamster-Rodents/dp/B07KNT3QP5?pd_rd_w=ilDXe&pf_rd_p=654426bb-d9e0-46ff-b0bb-c0819dce172b&pf_rd_r=RNEYHWKQFXY2V68R9XQH&pd_rd_r=e316a4ac-59b2-404e-ade3-32d55a9344e9&pd_rd_wg=7d5gZ&pd_rd_i=B07KNT3QP5&psc=1&ref_=pd_bap_m_rp_11_sc

again, these are super cheap and my hamster ADORES chewing them and carrying them around: https://www.amazon.com/Kaytee-Count-Carrot-Patch-Variety/dp/B00IPCOVTG?pd_rd_w=Ectug&pf_rd_p=654426bb-d9e0-46ff-b0bb-c0819dce172b&pf_rd_r=7YWN5CBHCJ2PXPPQVYKY&pd_rd_r=b4ac470c-0e5e-4b62-a242-aa3dd4e64e60&pd_rd_wg=hnMue&pd_rd_i=B00IPCOVTG&psc=1&ref_=pd_bap_m_rp_14_sc

super cute, another combo climb/chew, tho it took forever to ship: https://www.amazon.com/gp/aw/d/B008L1EFZQ?psc=1&ref=ppx_pop_mob_b_asin_title

a couple of these are kinda useless but my hamster is OBSESSED with the bark textured things from this set: https://www.amazon.com/gp/aw/d/B087Z75N9C?psc=1&ref=ppx_pop_mob_b_asin_title