All leather is vegetable tanned, and therefore safe for your birds. "Vegetable tanned" means it is treated with extracts from plants. Warning: Do NOT buy leather from the craft store unless it says "Vegetable Tanned" on the package. Otherwise it may contain chemicals that are harmful to your bird. Leather Toy Bases LAB-1lg$1.00, 3 for $2.25, 12 for $8.40, 33 for $19.99Options: BearButterflyPony Leather Triangle LNS13$0.25, 12 for $2.40, 100 for $16.00 Leather Square, 1" LSQ1$0.15, 12 for $1.44, 100 for $9.99 Leather Square, 1.5" sq15$0.30, 12 for $3.00, 100 for $19.99 Leather Square, 2" LSQ2$0.50, 12 for $5.40, 50 for $19.99 Leather Square, 3" LSQ3$0.70, 12 for $7.80, 33 for $19.99 Leather Rectangle rec0$0.35, 12 for $3.60, 80 for $19.99 Leather Circle, 3/4" LW3$0.12, 12 for $1.00, 100 for $8.00 Leather Circle, 1" LW100$0.15, 12 for $1.20, 100 for $10.00 Leather Circle, 1-5/8" LW4$0.35, 12 for $3.00, 100 for $19.99 Small Leather Butterfly LAB1sm$0.30, 12 for $3.00, 100 for $19.99 Medium Leather Butterfly LAB1md$0.40, 12 for $4.25, 65 for $20.00 Small Leather Heart LAB6A$0.30, 12 for $3.00, 100 for $19.99 Medium Leather Heart LAB-6B$0.40, 12 for $4.25, 65 for $20.00 Large Leather Heart LAB-6C$0.75, 12 for $6.00, 50 for $19.99 Small Leather Star LAB5A$0.30, 12 for $3.00, 100 for $19.99 Medium Leather Star LAB-5B$0.40, 12 for $4.25, 65 for $20.00 Large Leather Star LAB5C$0.75, 12 for $8.40, 30 for $19.99 Leather Flower, Regular LRC1$0.40, 12 for $4.20, 70 for $19.99 Leather Flower, Jumbo LLFLWR$1.00, 12 for $11.40, 25 for $22.50 Leather Lace, 1/8" LL4A$1.50, 12 for $17.40 Leather Lace, 3/16" LL7$1.65, 12 for $18.60 Leather Lace, 1/4" LL10$1.75, 12 for $19.99 Leather Lace, 3/8" LL38$2.00 1/16" Round Leather Lace (by the YARD) llr116ft$0.75, 12 for $7.20 Leather Lace Spool, 1/16" llr116$23.25 1/8" Round Leather Lace (by the YARD) llr18ft$1.00, 12 for $10.80 Round Leather Lace Spool, 1/8" llr18$37.50 Round Leather Lace, 3/16" (by the YARD) llr316ft$1.25, 12 for $14.40 Round Leather Lace Spool, 3/16" llr316$25.50